Breathe in 4 seconds, breathe out 4 seconds, repeat until you calm down.
Then go here and look at kittens:
http://icanhascheezburger.com/
If that doesn't help, go read about stupid celebrities:
http://www.wwtdd.com/
If that doesn't work, and you feel the need to rant, you can rant to me. I don't mind.