Deja View – Andreas Deja’s blog where he posts awesome animation rough drawings, storyboards and history bits as well as pencil tests of his own work, etc.
The Art of Glen Keane – unofficial website for Glen Keane’s work with lots of rough sketches and such.
Brian Lemay’s Site-
Mr. Lemay is an instructor at Sheridan Animation College in Canada, and his site is FULL of information as well as info on his courses and books.
several articles and tutorials on getting started, storyboarding, working through a scene, etc.
UCLA Animation Workshop
The Ultimate Disney Books Network
Didier Ghez’ great history-angled animation website. You’ll find interveiws with artists and animators as well as information on just about every Disney-related book ever written (I’m not kidding!)
“At Last, Foam Puppet Fabrication Explained!”
Also related to stopmotion is this article from AWN dealing with foam puppet construction by Tom Brierton.