Cosmonaut Keep by Ken MacLeod: a fun sci-fi adventure with flying saucers and communist-occupied Scotland. The sequel Dark Light is pretty good, the third book was disappointing.

Glasshouse by Charles Stross: a post-singularity sci-fi/horror/mystery novel about an amnesiac war criminal who signs up for an experimental recreation of a 20th-century American town.

Walkaway by Cory Doctorow: Semi-Automated Luxury Pansexual Terrestrial Anarcho-Communism.