Facebook is, I suspect, a hunk of old news to all of us internet veterans. However I recently became aware of Lamebook, a website cataloging all of the facebook failures and hilarity going on throughout the world. Some of these entries are lessons in passive aggression. Most are facepalm worthy. Enjoy!
I have a few more sites cataloging similar failures as well, but I am poorly educated on what is popular on the internet these days so I will refrain for fear of turning into That Guy that finds out about things two years later. BUT...I can list them if requested.