"The practice of mathematics is changing. While in the past mathematics was predominantly a solitary effort, now it has become increasingly collaborative. How does this growing inclination for teamwork translate on the Internet and what benefits and challenges does it bring?"
That's the opening of an interesting article on Tim Gowers "Polymath Project" -- essentially a collaborative forum for solving difficult math problems over the Web. I've reported on this topic in the distant past, and am a huge fan of (but non-participant in) the approach. The full article here:
The Project's blog is here: