Betting sites that offer sign-up bonuses attract new users by providing enticing incentives to join. These bonuses often come in the form of free bets, deposit matches, or risk-free wagers, allowing players to explore the platform without significant financial risk. By taking advantage of these promotions, bettors can enhance their gaming experience and potentially increase their winnings. However, it's essential to read the terms and conditions, as wagering requirements and restrictions may apply. Overall, sign-up bonuses can be a great way to kickstart your betting journey.