Hmm - I see that http://singinst.org/aboutus/team still says (incorrectly) that Michael Vassar is president.
I went ahead and removed Michael Vassar from the team page, for now. The new "president" (in the sense of providing overall leadership) is Luke Muehlhauser (lukeprog), though his title is "Executive Director". In the non-profit world there are a number of fuzzy connotations these terms have, it's sort of complicated.
If anyone is curious what's going on at SI, it seems as though they've started publishing monthly progress reports on their blog. The latest was published less than a week ago for the month of February:
http://singinst.org/blog/
Thought it might be a good idea to take a minute to positively reinforce the people at SI for their work. Here on Less Wrong, it seems as though we spend a fair amount of time criticizing what they're working on, which is of course valuable. But on the whole, I think there is a very good case they're doing very important and beneficial work. So, go SI!