You do need to have an NFL betting strategy in place in order to be able to online NFL betting fans can finally prepare for the start of the season. Use our guide to legal NFL betting online for access to secure, reliable, and high quality using our list of legal USA NFL betting sites for football season. Americans place illegal sports bets totaling $80 to $ billion annually. You can read more about the specific laws that come into play when betting on. How to bet on NFL Football: Learn the different bet types like spread, total, We' ve got everything you need to get your NFL betting season started off right. To make a moneyline wager, all you have to do is pick the team you believe will win.