Joumana Medlej at cedarseed.com has put together a few exceptional resources. These posters are amazing and must have taken a great deal of work.
- Drawing Cats 3: Big cats
- Drawing Cats 4: Little cats
- Drawing Cats 5: Domestic cat breeds
- Drawing Cats 6: Guide to coat colors and patterns
- Drawing Cats 1 & 2 are still in the works, look for them at Joumana Medlej's site. He also has tutorials in how to draw birds, horses, people and various body parts. Good stuff.
James L. Barry has put together several simple tutorials which are found on the Warrior Cats site, How to Draw Graystripe (from the Warriors book series), How to Draw a Cat, and How to Draw a Cat Sitting.