Animation Theory: http://www.arts.ac.uk/library/4781.htm

Technical Help Sites

Photoshop

AfterEffects

Rotoscoping:
http://macuser.pcpro.co.uk/macuser/features/68056/rotoscoping-using-imovie-4-and-photoshop-elements-3.html

History of Animation

http://inventors.about.com/gi/dynamic/offsite.htm?site=http://www.acmi.net.au/AIC/MAGIC%5FMACHINES.html
http://www.deadmedia.org/notes/6/063.html
http://www.paloaltoonline.com/weekly/morgue/2003/2003_02_07.muybridge7ja.html
http://citypaper.net/articles/111298/cm.photo.shtml
http://www.kodak.com/US/en/motion/students/beat/may2003/sfsu.shtml
http://www.understandingduchamp.com/author/marey/

Experimental Animation

http://www.roberthaller.com/firstlight/smith.html

Flash/Shockwave Animation

http://www.grid-city.com/
http://www.gairspace.org.uk/
http://www.tokyoplastic.com/
http://lifeduringwartime.ping.ca/