Create leads/ Make sales to small business

I have a Mobile Marketing business and I'm looking for help getting leads and help with the sales. This would be for small businesses, resturants, Dr's offices, Etc. I can close the sales but I am looking for help with generating leads. I'm open for ideas on how to generate the leads. This is a service that businesses need. I am interested in paying a commission per lead (a business that wants me to call them) of $10 each or for a closed sale of $50 each. This could lead to a full time job.