http://www.webquestuk.org.uk/ Web Quest - Search the Internet for data

http://www.ictineducation.org/ Useful advice for IT teachers

https://sourceforge.net/projects/audacity/ Audacity - Free to download. Sound manipulation program.

Sounds to use with the above program: 
http://www.findsounds.com/ - Search for sounds on the Internet in various formats.

http://www.moviesoundscentral.com/ - Spoken clips from films (Wave files)

http://www.earthcam.com/ Webcams around the world

http://www.bbc.co.uk/england/webcams/ Webcams in England listed by the BBC (now archived)