I need to advertise a new service to local Dallas/Fort Worth residents online. Off the top of my head I figure that if I can find any other local company/group/assocation etc. that has an online community, etc. I could try to advertise with them. But I'm new to this and not sure how else to proceed. There are millions of people who live in the Dallas/Fort Worth area, and if they are online I want to reach them. Does anyone have any experience with reaching a local market online, or have any suggestions for me on how to go about doing this? Thanks!