Researching history, learning more about the timeperiods I am interested in, or just more about the way people work, is always exciting to me. You can keep psychology, anthropology, I like learning about people and the world in which we live in a historical context.
At the moment my historical obsession is visual. Blogs like Shorpy put up more historic photos every day. a bunch of awesome museums have photos of items in their collections online and A Stitch in Time does a good job of letting us know when new museums come online. and then there is Pinterest. I admit, I'm really enjoying having a place to store all the images of historic things. I have spent many a lunch break going through museums and blogs and pinning away, making the historical world I portray richer by adding to my own knowledge. Feel free to take a look at what I have been pinning, and let me know about your own boards.