I would think that in your large metro markets (thinking New York, LA, DFW, etc.), there would still be a market for locator service or even utilizing a realtor. Even with the availability of excellent online tools, your options would be almost overwhelming. I know here in Ohio, there isn't a whole lot of opportunity for a locator service. I had listed with a few but got no traffic at all. My corporate leases (including short-term and/or furnished) came through traditional searches (not even a single one from even CORT's apartment search), my military through listings with base housing offices or mybaseguide.com.