Create zooming gifs.
Professional animation tool
Lovely little flipbook animation maker (slight shame about the gridlines. See also Pencil, the desktop app)
Lovely desktop animation tool with onion skinning.
Unusual toy with which you can paint in 3D on a disappearing canvas. Interesting.
Lovely free animation tool for Android or iOS.
A really easy and fun 3D animation tool. Draw a character, inflate it, then animate it by moving the points.
Synfig is a professional animation tool.
Create animated explainer videos, animations and more easily. I made this movie ident in a few seconds.
Nice flipbook animation tool, but NO EXPORT option. Also requires Flash.
Choose or upload an avatar and animate it to your soundtrack.
Open-source animation tool for Mac and Windows
Draw a doodle then animate it with your webcam and body. Loads of fun.
A charming tale of a goat.
Excellent film showing examples of animations around a word.
A collection of sprite sheets that you could use to help you with your animation.