I'm looking for online sites to shop around for homes or land. Any suggestions? I've looked at realtor.com, but that seems to have limited listings. I've also looked at Craigslist, but that was tough to browse and cast too wide a net (location and price-wise). It would be nice to find a site that listed land for sale too.

I guess I'm limited to sites that sellers list online instead of just through a realtor or the paper or something. But I thought the folks here might have some good suggestions.