Giles Apen, Studio Manager for Radio 2, talks us through the functions of PPMs.

• Interesting Semantic Web links [Tom Scott] Tom asked on Twitter: “What are your top 5 URLs to explain to a Senior Exec type what the Semantic Web is and why it’s important?”
• Ten years [A List Apart] A celebration of the first decade of A List Apart – the site “for people who make websites”.
• Information architecture for audio: doing it right [Boxes and Arrows] “When using audio today [on the web], we face challenges similar to those of written text about a decade ago.”
• New NASA law allows for possible shuttle extension [New Scientist] The problem: “how to get crews to and from the space station between 2010-2011 (when the shuttle stops flying and NASA’s current contract to use Russian Soyuz spaceships runs out) and 2015 (when the agency’s Ares/Orion programme starts flying, maybe)”.

• Stately decline [Media Guardian] and the associated PDA post Kingswood Warren: The end of an era gives the background to BBC Kingswood Warren faces strike.
• Intel unites the internet with TV [BBC News] Intel and Yahoo work towards a Widget Channel, or as Yahoo calls it the Cinematic Internet.
• iPlayer goes for higher bitrates, Olympic Gold and home theaters? [NewTeeVee] Is the BBC looking at a new generation of devices offering internet experiences alongside video content?
• Celebrating a stereo pioneer: Alan Blumlein [BBC News] His contributions to audio engineering, television and radar were amazing – some of his early stereo recordings have been restored.