limedaring - have you tried automating any of these steps? we've had a lot of success with using crawlers to find customers -> Amazon Turk to gather contact info -> templated emails.
True! You have to be careful with the quality (the big issue that I had using Elance). I've done something very similar crawling Twitter lists, and probably could work with crawling Yelp. I'll see about adding it to the article. Thanks!
