I see the ACM elections are coming up: there's a slate of candidates here including candidates for SIGACT chair and member-at-large.
I imagine candidate statements will be available shortly but I don't see them yet.
The two SIGACT chair candidates are Lance Fortnow and Madhu Sudan. I don't have a strong opinion about Madhu, but I am more conflicted about Lance: I think the complexity blog he's been running has been a great thing for the community, and I don't begrudge him his opinions and tastes, but on the other hand I'm unhappy about the possibility of being represented by someone who has been so open about his disinterest in algorithms research.