When I took a character animation class last semester, we often looked at John K's blog (creator of Ren & Stimpy), primarily because he posts frame-by-frame analyses of many Looney Tunes moments, dissecting how extreme exaggerations and motion smears look individually. Often times, the animation is so well executed and smooth that the extreme drawings of certain frames don't seem all that noticeable when watching them in motion. Through this, the animation is far more interesting and exciting when seemingly strange techniques are used. He also provides a link to the actual animated scene at the end of each post, so you can see what these images look like when animated.
Here are a handful of great frame-by-frame examples:
And my favorite, motion smears & poses!!
These are all really inspiring to look at, especially because the Looney Tunes classics are amazing examples of character animation loaded with great humor. Understanding the techniques that great animators used is so informative and makes character animation much more exciting.
Definitely check out more analyses on his blog; you can find them listed by the director's last name if you look through the listing on the right side of the page.
Please ignore the horrible 5-second introduction to this, it seems to be the best upload of The Great Piggy Bank Robbery!
& The Dover Boys: