Who our online musical friends are, the cost of restricted data, has iTunes peaked?, magnetic fridges and much more

This week's print edition of the Technology supplement is online too..
We look at how music recommendation works online (see the digital edition for the fascinating diagram), at the first estimate of the cost of the government's failure to make its data free, social software, ask whether iTunes is past its peak, at a magnetic fridge (not a fridge magnet) being developed by Cambridge scientists, and much more.

• How to get music to our ears
  Music recommendation has shifted from experts in dusty record shops to like-minded mates on MySpace. Adam Webb investigates how the music industry is keeping up.
• Data restrictions cost economy £500m
  Michael Cross: Fair trade watchdog blasts government agencies for manipulating the market in public sector information.
• The year I fell in love with social software
  Aleks Krotoski: Not since the dotcom bubble of the late 1990s has there been such mainstream excitement about things that happen inside computers.
• Christmas charity appeal
  New fuel-efficient wood stoves can help Sudanese refugees help themselves.
• Games
  The Legend of Zelda: Twilight Princess | Lord of The Rings: Rise of The Witch King | Wii Play
• What is the WEEE directive, and do I need to care?
  While the country was sent into a frenzy last week with the arrival of Nintendo's Wii console, the electronics industry was furrowing its collective brow over a more high-minded soundalike.
• Has the iTunes Music Store passed its peak?
  You mean, has it peaked and are we all eventually going to stop buying music online, if current trends continue? No, on both counts.
• Slingbox helps make 3G mobiles relevant
  Victor Keegan: Slingbox, amazingly, enables you to watch surprisingly high-resolution television on your mobile phone anywhere on 3's network.
• Technobile
  Michael Pollitt: Things have got so bad, you now need passwords to protect passwords. Is this drive for security affecting our sanity?
• A cool new idea from British scientists: the magnetic fridge
  The solid-state fridge could halve your energy bills and help to save the environment.
• When broadcasters are online, iPods are radio stars
  Charles Arthur: Early in 2004 I met a man in a corner of a room in Cambridge where various wannabe companies were showing off their grand solutions to problems I didn't know we had.
• The man who Raikes in the money for Microsoft
  Jeff Raikes, the president of Microsoft's Business Division (with a turnover of $12.7bn) has come a long way since leaving Apple in 1981.
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