A growing movement of scientists are beginning to practice a sort of open-source approach to their research and experiments. Using the ideas behind the web 2.0 movement (blogs,tags,social networks etc..), scientists are able to collaborate, inspire, communicate and develop ideas in a more efficient and productive manner. Issues arise however because of the competitive nature of certain scientific fields, and the worry that ideas could be stolen or otherwise misused. To me though, this seems like a great idea. Safegaurds can be taken to assure skeptical scientists, and the potential for exponential growth in scientific knowledge, at least for me, outweighs the risks.
Main article here (re-posted from Scientific American)
and some examples of this in action here
http://openwetware.org/wiki/Main_Page
www.usefulchem.wikispaces.com