Sports Business Journal
If you're looking for a good place to find information for your sports media research, you might try the Sports Business Journal. The site focuses primarily on economics and media; it also has a wealth of statistical information. The site also offers a College and University program, which offers discounts to educators, especially in the sports marketing field.
You do have to pay to get access, but you can get a free 30-day trial. It's also a potential publication outlet. The site's editorial department will occasionally publish layman versions of academic research.
Sorry if this sounds like an ad, but it is a pretty good site.