Hi there. Craigslist and this website presumably are excellent resources. I have listed my properties on Craigslist in the past and have had excellent results. I would check often as new postings push down old ones so you need to stay on top of it. Also, you may come across a great posting and really need to be ready to respond since everyone else is looking too. No question, the early bird gets the worm when it comes to finding a great SF apartment. Awhile ago when posting a flat in lower Nob Hill, I received 50 emails in no time and some were from out of staters who were hired in advance and were moving to the area. Tech is driving the demand as many people want to live in the city but are willing to commute to the peninsula to the usual employer suspects (apparently often via company provided van service). Good luck and welcome to the greatest city on the face of the earth!!!