Why use URL shorteners?

You must have seen them. Web addresses like which, when you click on them, take you to another web page. Why use them? Are there any risks in using them?

An URL shortener is a web service that takes a long address that’s hard to type, and turns it into a short one. You should use them in articles for print publication, classified ads, emails, blog and forum postings, anywhere there is a danger that the full address may be corrupted, or that someone may need to type the address into a browser manually.

But there is a danger in using short URLs that may make people afraid to use them. The short address disguises the real destination. This makes it easy for somebody to post an innocent looking message encouraging people to click on a link that takes them to a site which infects their computer with spyware, or something equally undesirable.

Some URL shortening services have tried to address this problem. The most well-known service, TinyURL.com, has an optional preview page that shows you the target address before you go there. But you have to know to type “preview” in front of the address, or visit the site and set it as a permanent option. Those who don’t know about this are still vulnerable to deception.

A safe URL shortener would not allow the creation of links to undesirable sites. It would also always display a preview page, so the user always sees where the link is taking them before they go there. xaddr.com uses Internet blacklists to prevent its use to disguise sites that are advertised by spam. Its preview page offers a link to McAfee’s Site Advisor, which can be used to check the safety of the destination.

Next time you need to write a long web address, use an URL shortener. But to encourage confidence that no harm will come from clicking the link, pick a safe one.

Carbon emissions can be reduced by mobile technology says Telecom

Carbon emissions can be reduced by mobile technology says Telecom Giant Vodafone

According to communications group Vodafone, mobile technology could cut Europes annual energy bill by at least 43 billion and reduce the regions greenhouse gas emissions by 2.4% by 2020.

The report, Carbon Connections: quantifying mobiles role in tackling climate change, drafted in collaboration with Accenture, identifies 13 areas where mobile technology could help reduce emissions and costs.

The opportunities fall into two main categories smart machine-to-machine (M2M) services, in which equipment connects wirelessly together, and dematerialisation where physical goods, processes or travel are replaced with virtual alternatives.

Every business, large or small, will need to deliver its products and services in a way that minimises both cost and the impact on the environment, says Vodafone CEO Vittorio Colao.

M2M services encompass measures such as smart grids and metering to manage energy use better. It can also enable smart manufacturing to allow remote monitoring of equipment performance to ensure optimal operation and reduce routine maintenance.

Mobile technology can be used to improve the efficiency of logistics and improve the flow of traffic to reduce congestion and vehicle emissions.

Meanwhile, mobile technology can minimise the need to travel at all via remote working and video conferencing.

This report demonstrates the important role that mobile technology, in particular smart solutions such as M2M services, can play in carbon abatement while at the same time offering a financial saving for our customers, says Colao.

Article Reference: Energy Efficiency News

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Fully Loaded Laptops

Buying a laptop is a commitment! Once you buy it, you cant decide to change or upgrade any part of the system, as doing so is impractical in terms of cost and time. So plan before buying a laptop, and make sure its a fully loaded model that is up to date.

One of the important features of a laptop is its memory. While most laptops come with a 128 MB memory, its wise to invest in more memory such as a system memory (RAM) of 256 MB or even better, 512 MB, for the easier running of programs under Windows ME, Windows XP, and others. After all, the more memory the merrier!

Another main feature of a laptop is its port. A port is a slot through which external material such as microphones and cameras are connected. Laptops come with a serial port, infrared, parallel, and a Universal Serial Bus (USB) ports. Most external equipment correspond with different ports, which is why there are several types of ports in a laptop. However, it is best to opt for at least two USBs, as this is fast becoming the most popular of ports.

CD-ROM drives are not a standard feature of laptops, but it is best to have one installed, as most software comes in CDs these days. Even better would be to install a DVD-ROM drive, which can be used to read CD-ROMs too. A DVD-RW drive is capable of writing and rewriting CDs and DVDs. Also, when on a lengthy trip, having a DVD drive means you can check out your favourite DVD!

Laptops come with internal modems or external PC card-based modems for ready Internet access. The majority of new laptops even come with modules for wireless networking, like Apples laptops which are Wi-Fi compatible.

Input devices in a laptop range from the Touchpad to the Pointing Stick. A Touchpad is located beneath the spacebar on the laptop keyboard. It is touch sensitive; use your fingers on the Touchpad to move the cursor across the screen. The Pointing Stick is a rubber nub set in the laptop keyboard, and can be used to navigate the cursor by applying pressure with your index finger, similar to using a joystick. You can also plug in a standard mouse should you feel the need to do so.

There are a staggering number of laptop brands in the market today, so choosing that perfect laptop suited to your needs is no problem at all!

The Toshiba Portege R100 is a laptop specially designed for the mobile professional. With a striking appearance, bright screen, and integrated webcam, the Sony TR3A Vaio Ultraportable Laptop is the perfect travel partner. The Sony Vaio X505 is super thin, and uses carbon-fiber for its chassis, making it shock-free and robust. The Panasonic Toughbook Y2 Ultraportable incorporates a number of computer features in a portable and durable design, and pays special attention to battery life. For an excellent Multimedia feature set and attractive design, the Dell Inspiron 700M Notebook fits the bill.

Take your pick!

Two Basic Parts of a Low Cost Web Site Promotion

Two Basic Parts of a Low Cost Web Site Promotion

Anybody could own a web site. Anybody could up sell their own products and services to their target audience. Anyone could try to promote their web site with a low cost. But there are not many web sites that have a truly successful web site with traffic all day through. What these individuals or companies lack is the most essential factor of success a low cost web site promotion that really works.

If you have been trying to promote your own web site and you have received traffic every hour, my hands are down for you. But for those people who need assistance, who does not have the patience to promote their own product and services, and lacks knowledge to properly advertise themselves, here are some guidelines to help you achieve success with a low cost web site promotion.

Search Engine Submission and Ranking are the two basic parts to a low cost web site promotion. Both of the parts have the same effect on the market of the web site for your products and services presented in your web site catches the peoples attention.

The first inexpensive method of web site promotion is the search engine submission. This first part is the act filing information and submitting your web site to search engines. There are two types of Search engine submission manual and automatic. For a low cost and effective web site promotion, automatic submission is ideal because after filling up the information, a software program would forward this information to other search engines.

The second money-saving web site promotion is ranking. This refers to the numerical position in which your web site appears on a search engine, based upon the web sites criteria. Some search engines rank the order in which your search results appear primarily by how many other web sites link to each page. The leading web sites on this order would eventually fulfill a low cost web site promotion.

Other types of inexpensive web site promotion you could use to boost up traffic on your web site are banner advertising, classified ads, text links and section sponsorship. Banner advertisements pop up above and below web pages, and sometimes in another window. Text links and section sponsorship may cost more, but these methods helps in promoting to your specified target audience. It wouldnt harm your web site to try these methods.

Always remember that the effects of your not so costly web site promotion hits are increasing significantly each day. Dont waste time; find an effective and affordable web site promotion of your choice today.

How To Use Labels In Microsoft Excel 2003 To Sum

How To Use Labels In Microsoft Excel 2003 To Sum Cells

Microsoft Excel is a fantastic tool but one of its downfalls is the use of cell addresses especially when you are trying to sum a series of numbers; however Microsoft has a really cool tool that allows you to add up a series of cells simply using the labels around your data. In this article we will investigate the steps you need to follow to be able to use Labels to Sum cells in Microsoft Excel.

Let us get started

To show you how using labels works, the first step we need to undertake is to simply create a new set of data, so open a new Microsoft Excel workbook and click on Sheet 1. First off we are going to build the worksheet so in cell A1 I want you to type – Years, in cell B1 type the word Values and in cell C1 type the word Values1 and in cell D1 type the word Total. These four values we have typed into cell A1, B1, C1, D1 are labels. We are now going to put into the worksheet three more labels. In cell A2 type the value 1999, in cell A3 type the value 2000 and in cell A4 type the value 2001. The last three values entered will in fact become labels but we will convert them to labels a little latter on.

In the remaining cells simply put the following values:

B2 – 29 C2 – 32
B3 – 54 C3 – 99
B4 – 62 C4 – 72

Now that we have built a very simple spreadsheet and we have a few values to work with we have to tell Microsoft Excel to actually accept labels in our formulas in our spreadsheet. We do this by first going to the Tools menu and then choosing the Options command from the drop down menu. The Options dialog box will now be open in front of you. Simply choose the Calculation tab and in the bottom right hand corner you will see a check box that says Accept Labels in Formulas and you need to click on the check box so that it has a tick in it. Then to complete the process simply press the OK button.

Now we can use the labels we put in B1 and C1 to add up the values.

Lets try it out

In cell B5, which is the Values column I want you to type the formula –

= Sum(Values)

The cell should return the total of 145. What you will notice though is that the formula looked up the column to where the label was and said everything in this column will be added together. We could have simply typed the following formula instead of using labels –

= Sum(B2:B3)

However, as I am sure you will agree, using labels makes your formulas a lot easier to read and much clearer to understand. Now it is your turn. In the cell C5 write the equivalent label formula for that cell. I will give you a hint if you are not sure –

= Sum(Values1)

How did that go?

Alright, the next issue we are going to visit is using numbers as formula labels. Now if we simply typed in cell D2 the formula –

= Sum(1999)

All that would be returned is the value 1999 so this will not work at all. In fact what we need to do is to tell Microsoft Excel that we want the cells in A2, A3 and A4 to be treated as labels. The first step we must do is to select cells A2,A3 and A4, then go to the Insert menu, choose Name from the drop down menu and then choose the Label command from the expanded menu. The Label Ranges dialog box will now be visible in front of you. All you simply have to do, to have the cells we chose before defined as Labels is to press the Add button and then press the OK button.

Click once on the cell D2. What we are going to do now is to type in the same formula I mentioned before and that is –

= Sum(1999)

By the way, press the Enter key if you have not done so already. As soon as you do that you should see that it adds up the values in cells B2 and C2 and you will see the value of 61 in your cell.

Try creating the formulas for the other two cells –

D3 = Sum(2000)
D4 = Sum(2001)

Finally, just to finish our spreadsheet off , we can total all of our total values in cells D2, D3 and D4 by typing the following formula in D4 –

= Sum(Total)

Using labels in Microsoft Excel is a very clean way of summing your values as it ensures that you do not miss a cell address and it makes the formulas a lot simpler. One issue that I do teach my students is not to put blank rows in your spreadsheets as I have seen cases where the blank rows actually affected the ability of the application to work out what was a label and what is not. By following the design process I outlined above you will find that you have absolutely no troubles in using Labels to sum cells in your spreadsheets.

Suggestions To Select The Right Video Game System For Your

Suggestions To Select The Right Video Game System For Your Residence

Lots of people right now at the moment are shopping for the most recent online game system out there within the market. Nonetheless, it’s important to think about that buying online game methods is just not that easy to do. It is advisable to know the way each one works and likewise know the advantages and disadvantages of each online game system. By understanding these components, you will be able to choose and buy the fitting video game system to your home.

Right this moment, there are three major gamers within the video game system industry. These are the Xbox 360 which was developed by Microsoft, the PlayStation three by Sony, and the Nintendo Wii by Nintendo.

In fact, the first thing that it is best to take a look at is the worth of the online game system. At the moment, PlayStation three is considered to be the most costly one obtainable available in the market which is adopted by the Xbox 360. The cheapest of all however not by a lot is the Nintendo Wii.

You need to keep in mind that it doesn’t imply that the higher the worth the better the video game system is. It principally is determined by personal preferences. Some could say that the Xbox 360 is the best online game system of the three whereas others will disagree and say that it’s PlayStation three or the Nintendo Wii.

The following step that it’s best to remember when selecting a video game system is that the one you choose should have the games that you’re trying for. Though most sport titles are available for every of the online game system, such as the Guitar Hero: World Tour and different fashionable game titles. Nevertheless, there are additionally sport titles exclusive for each online game system. For PlayStation 3, you have the Steel Gear Solid four, Xbox 360 you’ve Halo three, and for the Nintendo Wii you’ve got the WiiFit simply to call one for each online game system. It can be crucial that you just discover out what games you’re in search of before you select and buy the video game system.

You should also know who you might be buying the sport system for. Like within the motion pictures, each sport is rated for specific gamers. The extra mature the gamers are, the extra mature the ranking the games they are going to buy. Xbox 360 and PlayStation three are inclined to appeal extra to mature audiences or players while PlayStation three focuses on games which might be more family and kid-friendly.

Next, you’ve got to take a look at the accessible accessories for the online game system you plan on purchasing. You have to remember that equipment can actually have a big effect on the online game system and the video games you play. You must select one that has equipment that appeals to you the most.

Lastly, you have to do not forget that every video game system has distinctive features that aren’t accessible on other online game system. For PlayStation three, it gives the Blu-ray player. This can allow you to play Blu-ray films, which implies that you don’t have to purchase separate Blu-ray players, which may cost you a whole lot of dollars more.

Nintendo offers infrared sensor controller. This distinctive feature will detect your bodily motion and incorporate your movement within the game. For example, in case you are taking part in a tennis sport in Nintendo Wii, you actually need to swing the controller like a tennis racket with the intention to let your character hit the ball on screen. This distinctive feature makes Nintendo Wii great for kids, family, and friends.

For the Xbox 360, you could have the Xbox Live Marketplace. Right here, it is possible for you to to obtain motion pictures, new games, and sport dietary supplements to improve your game. Though the net function can be accessible for both the PlayStation three and Nintendo Wii, the Xbox 360 presents more performance to its market, which is much more fun and enjoyable to play games online.

These are the things that you want to remember while you plan on selecting and shopping for online game systems. By following the following tips, you will be able to get the very best online game system that you could have quite a lot of enjoyable with enjoying proper in the comforts of your own home.