It's rare that I stumble upon a humor site that is genuinely, regularly funny. Many have glimpses or flashes of true brilliance, but few can do it almost every post. Say hello to wondertonic: http://wondertonic.tumblr.com/ At its core, WT's humor "recipe" often implants the grotesque into the serious or mundane. See their latest post for a perfect example:
I, for one, know that my significant other would appreciate 4chan-themed tokens of my admiration.
And certainly don't go without paying a visit to People Sighing on Twitter.