I agree with HostIvo. You need to research your target market, to see what is going to attract their attention. Personally, I've completed Marketing 1 and Marketing 2 courses in High School, it was a very nice learning experience. In the hosting industry, I would say the most important thing is word of mouth. Make sure at first, the few customers you do get, are 110% satisfied with your services. Go above and over the edge, send them Christmas Cards, show them you care. I guarantee success will come as it's deserved.
Goodluck.
P.S. -- Marketing is about 95% psychological. Remember that.