Climate Signals is an innovative database that uses social media to collect large volumes of very current information and studies related to climate change. Anyone can participate; there is an instructional video describing how to do so.
What makes Climate Signals such a useful site is that the large network is constantly updating the site with the absolute latest and most current information on climate change. It's more current and through even than Google or Google News in my opinion. I use what I find there to help me keep my Twitter account current. Here is a sample of stories and reports collected from a single day (January 19, 2010).