I actually have two: chick lit and true crime. The first because I can't stand shoe shopping and don't want to read about other people doing it, the second because there's enough bad stuff on the news everyday without reading more.
What blogger inspires you? It can be any kind, it doesn't have to be a book blog.
I am always inspired by our kind hosts, Parajunkee and Alison Can Read for their dedication to their blogs.
Also, I have great respect for any writer who blogs as I know from personal experience how hard it is to find time for one, let alone both.