The best free advertising that I have been using is social networking. I also made some websites to promote the business with all the information linked to my profile. Craigslist is also a good tool to use for those out there that want to get refferals fast go to craigslist and make an advertisement for SFI as well as tripleclicks. You make a facebook page to promote the business and get refferals. These have all been pretty effective for me.
