At first, US casinos used bonuses as part of their marketing strategies to attract more bettors. You can’t imagine online gambling without thinking about the bonuses and promotional offers that would help extend your gameplay as well as increase your wins. Best Online Casino Sign Up Bonuses for US Players In this guide, we will not only inform you about the different casino signup bonus offers but also the advantages and the best casinos that offer these bonuses. If you’re looking to register at a casino, there are some attractive online casino sign up bonuses for new members.