What kind of info are you looking for? If it's comps, try subscribing to http://www.homevalueplus.com.
I'm an investor, and I don't buy a house without consulting it. It will allow you to get unbiased comps. No, it's not free, but has been worth every penny for the past three years. If you need any other info, I'll be glad to help you out in any way I can. Again, I'm only a fellow investor, not a Realtor. firstname.lastname@example.org