http://postsecret.blogspot.com/
I don't know how many people know of postsecret but basically a guy set up a mailing box for people to send in secrets and posted them in the above blog, in a pretty short space of time he was getting thousands a week. Reading that always brings me back down to earth.
I've attached some of the olders ones that I felt enough to save.
Here's my own version as well: http://heartbreakkim.deviantart.com/art/For-the-last-time-65220055