Best resources for finding an apartment in Central Sunset, San Francisco?

The best resources for finding an apartment in Central Sunset, San Francisoc are Craigslist, of course. Though I prefer the mapping function on Padmapper--easier to see where the apartments are actually located and to plan your apartment hunting better. In Central Sunset you might also try just walking around in the area--a lot of places put up for rent signs before they put in listings which gives an advantage to those who luck out and happen to see the sign first.