Kate Russell gives us her latest selection of the best sites on the World Wide Web.
Cs4fn.org was created by Queen Mary University in London to persuaded us that computer science is fun.
Content is king on this site, which likens programming to conjuring magic tricks. There is a really nice downloaded file of a book of tricks you can learn at home.
Plus, the blog-style entries listed by date or topic show you how to turn computer science into a game.
The site reinforces the idea that understanding computers is about understanding people as much as making the maths work.
WILD MOOD SWINGS (www.wildmoodswings.co.uk)
Internet users can now surf a multitude of different websites based on the mood they are in.
There is an impressive number of moods with each one linking out to one other site.
Just pick a mood from the drop down box and an appropriate website to fit your state of mind will pop up.
There's not much to this site in itself, but whoever made it has really done a good job of hunting out some great content to put behind the moods.
COUNTER MEASURES (http://countermeasures.trendmicro.eu)
This well written blog will keep you updated on the dangers lurking around the internet, including the latest hacks, bugs and potential scams.
Countermeasures.trendmicro.eu is written by the CEO of an internet security firm, so it is on the pulse of all the issues we face online.
There is down to earth advice about how to keep your data safe, as well as broad-minded opinion pieces on anything and everything tech.
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There are a few sites around that enable you to shorten a long URL for a much shorter one, but this site also allows you to send the link directly to a Twitter account.
These web addresses are not designed to trip off the tongue from memory, but rather make them a nice tight link to be clicked from a forum or website.
If you want a domain name that's a little more memorable then head over to the sister site at
where you can get unlimited free domains.
But be aware that any domain names receiving less than 25 hits per 90 days will be removed from your account.