Quick post here - already posted to Twitter and wanted to make sure this one was seen by people who read this blog but don't follow me on Twitter.
There is a nice compilation/commentary/review from Diane Dawson titled Open Science and Crowd Science: Selected Sites and Resources. It is in the journal "Issues in Science and Technology Librarianship" (which I note - is a new one to me). It has a lot of useful resources and comments about various open science activities on the web. Definitely worth checking out.