http://phsgirard.org/index.html
http://intranet.col-westanglia.ac.uk/storage/resources_net/curriculum-press/BioFactSheets/index.pdf - fact sheets on many topics including questions and exam tips
http://www.ecglibrary.com/ecghome.html - library of different ECGs and conditions accompanying them
www.bbc.co.uk/education/asguru/biology - Revision
www.s-cool.co.uk - revision activities and tests
www.biologymad.com Revision activities and some questions

www.spolem.co.uk - Links to good websites inclusding help with how science works topics
www.revision-notes.co.uk - What it says on the tin
www.mrothery.co.uk - Revision work from a very experienced teacher
www.biochem4schools.org - Quite advanced revision and extension work
www.kscience.co.uk - Simple animations to help with some topics

www.biologyguide.net - Notes, quizzes and extension work

http://www.khanacademy.org/#Biology - Video tutorials on many subjects


http://web.sfn.org/index.aspx?pagename=brainbriefings_main#2006 - clinical trials helping to diagnose neurological disorders