Steadfast uses a wide variety of avenues including Google Adwords, Facebook, Linkedin, Twitter, WHT, The WHIR, PRWeb, Website Blog, Local Events (built in chicago, chicago chamber of commerce, small business expo, etc).
Since we have over 16 years in business, its not just all about self promotion though and sales, we try to contribute to the hosting community by contributing with useful input and knowledge. We find that to be very useful exercise for keeping our team mentally sharp and involved in the community.