So I've stumbled across a strangely promoted blog called "What Happened in Piedmont?"
Here's the link:
http://www.whathappenedinpiedmont.com/Looking around on the internet, I gather that it's some type of viral campaign for an unknown movie or tv series. There is no wiki or official infomation on it, but people on digg and other various sites have ideas on what it could be.
If you read the terms of service on the blog, it talks about it being some kind of game, but the only interaction it speaks of are user comments.
Has anyone seen this before? Apparently there is a billboard for it in LA, I found an ad on Superherohype.com for it.
This may or may not be the answer, but there is no Piedmont UT in existence. There is a Piedmont in NM in the movie Adromeda Strain, back in the 70's. In the movie the said town was destroyed by a virus brought down by a returning satellite. It also seems that imdb has a 2008 TV series in production called Adromeda Strain. Could be coincedence but it seems likely.