I personally like Trulia as I enjoy reading the blogs and the questions. Zillow is very expensive if you sign on for a zip code, but having said that I work with several people that are having great success on Zillow but it takes several months. Also if you don't have recommendations on Zillow you are not found. I am actually annoyed that Trulia is now following Zillow in getting recommendations from clientws. Not that I don't have them but I think it is little much to ask your clients to recommend you on all the different sites you might be on.