So basically the citizens of the interwebs were using this fact-checking site live during many public debates/speeches
Link: PolitiFact | How to get the facts during the presidential debate
The funny thing is what the various media outlets had to say about it:
Traditional broadcast media: "Romney won!!!!!"
Social media: "Romney lied like a rug on every major topic he addressed, and here's documentation."
Link:Daily Kos: Traditional & Social Media Collide Over Obama/Romney Debate
I find it funny, didn't check into the individual "smoking gun, pants on fire" lies, but surely one of you politics folks can shed some insight.