Show HN: Quod.us – Building an open database of misinformation

I'm trying to validate this concept, so any feedback is greatly appreciated.

My goal is to create a nonprofit organization and make everything free and open source.

I have a small amount of experience in NLP, specifically with NLTK. I think this type of dataset would be very useful for flagging potential misinformation, but if anyone more experienced than me could chime in, I'd appreciate it.