Post secret is a favorite of mine too. I love the glimpses of our true nature.
Have you seen FML (Fuck my life)?
http://www.fmylife.com/tops/flop?page=1
Some current samples:
"Today, I got stuck in an elevator for 2 hours with my boyfriend and the guy that I have been secretly having an affair with for 6 months. FML"
or a taste of karma in action
"Today, I wanted revenge on the rabbit who ate my garden's plants. When he returned, he was standing next to my brand new above-ground swimming pool. I pull out my 22. rifle and shot at it, but the bullet missed and popped a hole in my pool. 15,000 gallons of water flooded my basement. FML"