My SO just found an amazingly cute blog: Cute Overload. It focuses on, as you might guess, cute pictures of animals. It's amazingly fun to browse, as you can find hamsters licking fingers, sugargliders nibbling ears, extreme closeups of cat faces, rats and hedgehogs checking each other out, cats in boxes, and dozens of other insanely cute pictures. If you need a quick pick-me-up, just go there.
[Update: How could I have forgotten to link to these baby possum pictures???]