Thailand Blogs is a collective of blogs by people in Thailand and Thai expats. (Fantastic round-up of the various blogs, detailed background.)
Jot Man, which is an actual blog. (English is not the writer's first language, but awesome pics and detailed descriptions of what's going on in them.)
2Bangkok, which looks like like a blog coupled with a few newsy touches. (Confusingly organized.)

Other LJ users blogging the coup: