energetic 
I've never read anything by Mr. Williams before, but this one caught my eye at the book store. It's about 100 pages long, part of Monkeybrain's new "short novel" line. This is a killer book, and I read it in one sitting. Basically, a prophet of sorts is looking to unite the far flung worlds of humanity under one protective banner, but Earth isn't buying into the system, and the resistance is led by a man who lives his life out of sequence and might just be a god. Got it?
This apparently takes place between two novels set in the same world, but no prior knowledge of those books is necessary. This is a tight, intriguing little book and I'd love it if more publishers made this length of tale available in standalone volumes. As for Cenotaxis, you can't go wrong. Check this one out for sure.
Also, I'm reading Cory Doctorow's "Little Brother" as we speak, and so far it completely lives up to the hype. More to come...