I'm a fan of editorial cartoons, but browsing dozens of different sites to read them is a hassle. Or was, until a few months ago when a friend of mine showed me this page on Slate, which has like a hundred different daily cartoons in one place (there are like 12 pages for today's cartoons, and you can browse each artist's previous cartoons if you miss a day or two.) Saves a lot of walking around the web, keeping links updated, and *gasp* dealing with registration-only newspaper sites.

Only thing better would be an iComic plugin to slurp all those comics onto my Mac... Might be writing that myself, actually.