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Keyboard Cleaner, via melo.

Totally legal, more than 190.000 licensed Creative Commons tracks.

Jamendo allows artists to promote and publish their music. Artists have the opportunity to show their creativity, and the public has a place to listen to, download, and share new music.

If you find an album that you like, you can share it on your blog, write a review, or donate directly to the artist. Some artists will even include the list of people who donated in the booklet of their forthcoming albums. A great site for both artists and fans. Everybody wins, except for the big record labels of course.

A short journey to the future. Merry Christmas!

To keep us amused during the holidays, Tom from the New Scientist Technology Blog has compiled a short list of fun materials - stuff that behaves a little bit outside the norm - with instructions to do it at home.

Here goes a short version of the original article:

• Dilatants, also knows as Non-Newtonian fluids, so named because it's properties cannot be described in terms of the concepts of classical fluids. For instance, they get more solid when stressed;
• Auxetic material - materials that get thicker when stretched. Pull them in one direction and they expand in another;
• Superfluids - liquids that flow without friction. They can effortlessly flow through the tiniest of cracks and will even flow up the walls of a beaker and out the top;
• Ferrofluids - magnetic fluids that can look spectacular. They're made from nanoscale magnetic particles suspended in a liquid;
• Dry ice. Carbon dioxide freezes at -78.5 °C and it's fun and versatile stuff:

After developing SAM (Skype Answer Machine), KishKish has developed the first lie detector for Skype. You can get it here.

It analyses audio streams over a Skype call in real time and illustrates the stress levels of the other person. As well as operating in real time the KishKish device can also record calls for analysis later.