Links
Spirituality/Philosophy
http://www.infidels.org/- Internet Infidels Discussion Board - A great place for healthy debate on all things spiritual
http://www.jesuspuzzle.com/- Earl Doherty's website - The thesis that Jesus was not a historical person.
http://www.randi.org/- The James Randi Education Foundation - Debunking spiritual frauds.
http://www.skepdic.com/- The Skeptics Dictionary - A no nonsence site providing definitions and explanations for all things paranormal .
http://www.christian-thinktank.com/- A site containing apologetics and indepth Theological/Philosophical discussion
http://www.ccftapes.co.uk/- Chichester Christian Fellowship. An invaluable source of Bible study.
http://www.jvim.com/ - Jack Van Impe Ministries. (Eschatology)
http://www.creationevidence.org/ - Creation Science
Writing
http://www.chronicles-network.com/- Probably my favourite forum site at the moment. Here you can discuss Sci-fi & fantasy and if you're a budding writer, get some great critiquing on your work.
http://www.storypilot.com/ - An excellent resource for locating publishers of short stories
Art
http://www.geocities.com/SoHo/Museum/3828/ - M.C.Escher optical illusions
http://www.encaustic.com/ - Encaustic Art
Other Stuff
www.adamzone.co.uk - All you wanted to know about passing a maths exam but were afraid to ask!
GCSE Maths Revision site - Buy a DVD to help you pass GCSE maths