From the about page:
Crowdsourcing.org is the leading industry resource offering the largest online repository of news, articles, videos, and site information on the topic of crowdsourcing and crowdfunding.
Founded in 2010, crowdsourcing.org, is a neutral professional association dedicated solely to crowdsourcing and crowdfunding. As one of the most influential and credible authorities in the crowdsourcing space, crowdsourcing.org is recognized worldwide for its intellectual capital, crowdsourcing and crowdfunding practice expertise and unbiased thought leadership.
Crowdsourcing.org’s mission is to serve as an invaluable source of information to analysts, researchers, journalists, investors, business owners, crowdsourcing experts and participants in crowdsourcing and crowdfunding platforms. (emphasis in original)
If you are interested in crowdsourcing, there are worse places to start searching. 😉
Seriously, Crowdsourcing.org, hosts a directory of 2,482 crowdsourcing and crowdfunding sites (as of September 24, 2013) along with numerous other resources.