Right now I am advertising on every free local business advertising site I can think of. From what I have noticed, some are a complete waste of time and some actually do bring customers on a regular basis. The ones that seem to bring customers are Thumbtack.com and possibly my Google plus webpage (local business). Craigslist brought in quite a few in the beginning but I am trying to get away from advertising on there. What online advertising sites have brought you customers?