I see Fernando Rodriguez Villegas (one of the organizers of the AIM workshop that I wrote about earlier) was inspired to start a blog around the same time we were. Unfortunately, he says he is going on vacation for a month, but the two real posts he’s done so far have been pretty good.
This seems to point out to me why having co-bloggers is such a good idea. When I was thinking about starting a blog, I didn’t even consider doing it on my own, because I knew I wouldn’t post consistently enough to do a blog worth reading, and because I feel like having a group blog is a positive sum activity, that really encourages interaction between the bloggers, not to mention that it lowers pressure on everybody. I feel like this is clear if you read enough group blogs, but I feel like older mathematicians, perhaps because they’re less familiar with the form, seem to have not picked up on this fact (well, with at least one exception).
Accordingly, I have a modest proposal: rather than each having an individual blog, Terry Tao, Richard Borcherds and Alain Connes should all blog together (in fact, all the Fields medalists should have a blog together. This would be the best blog ever). And all you blogging mathematicians out there, find some cobloggers!