It's icanhascheezburger.com, and it's just pages and pages of funny cat pictures with silly captions. I love it! It's also linked to a similar page for dogs, as well as politics and office charts based on popular music. All a complete waste of time, and very fun.
Also dlisted.com, like perez hilton, trash talk about celebrities. Lots of "guess whose cellulite this is" sort of junk. Hey, you said insomnia. I wouldn't recommend this for anything less urgent.