Yes a lot of money can be made, however I haven't capitalized on it, and don't know much on the affiliate side of it. The search volume for people looking for picks, predictions, and game stats / break downs is amazing. The want someone to break it all down for them.
While I don't know the
conversion rates of people that actually end up purchasing picks or what touts offers affiliate program or details of though etc. I do know this is extremely profitable on getting paid per click. To give an example last year I started and NFL betting
blog right at the start of the season. By mid season I was getting a few thousand uniques on peak days (Thursday - Saturday), I would look up keywords where I got a couple hundred + hits in a day and notice I was #8 through #20 for those terms. I came to learn that desperate gamblers will keep searching over and over till they find what the want to hear said how they want to hear it. In addition semi sharp players actually spend time doing homework and looking for stats. Can appeal to both markets with covering some basic stats while still telling the fish want they want to hear.
If I do the same next season it will likely be either 3 way link exchanges with big sites, Adsense, or selling ads on the page.