Discorderly Conduct is one of the greatest tumblr/comic series out there! Even if you haven't been following it you can jump in almost anywhere and have a laugh. Now that takes talent!
Comic: Discorderly Conduct - Before You Break My Heart / Rock Smash! / It's Not My Fault I'm a Horse 8 / Without Magic 22 / Sharing Vision / Discorderly Conduct - Baby Got Backtalk