Don't miss Disney's B'rer Rabbit Hops Into the Funny Pages by Wade Sampson over at Mouse Planet! Some interesting reading about the weekly Uncle Remus comics.
Got the new "Where's Dennis?" book from Fantagraphics yet? You should. It contains a treasure of old gag cartoons like this one from Collier's. It's actually from the very same issue as the cover I showed earlier. It appears in the book, but without color.
And while you are at it, why not order the "Betsy and me" book by Jack Cole. Got both books myself yesterday. :)