Pee Research Center

The Pew Internet and American Life Project is one of 7 non-profit, non-partisan research organizations started by the Pew Charitable Trusts. It provides free, public information on how people use the internet. I find the work they do personally interesting as it helps me understand how people use technology (like their work on the digital divide: http://www.pewinternet.org/topics/Digital-Divide.aspx), but they've also produced some great research that we've used to make graphics here at SiteJabber like these:

http://www.sitejabber.com/blog/2011/01/19/how-does-age-affect-web-use/
http://www.sitejabber.com/blog/2010/10/11/more-people-are-researching-products-online-before-they-buy/

So, thank you, Pew. Please keep up the great work.