Since the internet started in the early 1990′s, online sportsbooks have been online providing a haven for the sports bettor to place winning bets. These online sportsbooks quickly became an alternate to the Las Vegas casino sportsbooks and provide people without access to a brick and mortar sportsbook the capability to place safe and secure sporting bets.The online gambling industry has grown into a worldwide billion dollar industry. There has been thousands of sportsbooks that have launched online since the advent of the internet. Many of those sites are no longer active online. But there are a nice group of reputable online sportsbook brands offering awesome sports betting experiences to the online sports bettor. This growth has made obtaining and retaining sports bettors increasingly more competitive. There are a few things you should research before choosing a sportsbook and opening an account.Online Sportsbook Deposit BonusesThere are incredible opportunities for the online sports bettor in the form of free money when opening an online sportsbook account. Online sportsbooks offer a couple different bonuses to entice bettors to places sports bets at their sportsbooks. Sportsbook deposit bonuses are usually offered in two forms: sign up bonuses and reload bonuses.It is safe to say that every sportsbook online offers some sort of sign up deposit bonus to all bettors that open an account at their website. The bonus is usually a certain percentage of the initial deposit such as 20% or more. This bonus money is free money that is added to your online betting bankroll.Most top sportsbooks also offer a reload bonus. This kind of bonus is given to current players that are adding funds, or reloading, their account. These types of bonuses are similar to the sign up deposit bonuses and are usually in the form of a percentage amount deposited.Bonus RolloversOnline sportsbooks don’t offer sign up bonuses and reload bonus only to be nice and entice players to bet at their site. They expect this money to come back to them in the form of sports bets. To ensure that they don’t lose out on their investment in their players, online sportsbooks require you to rollover a certain amount of the bonus before requesting a payout.To unlock your deposit bonus and withdraw your money you must first fulfill the rollover requirement. A rollover is typically a multiple of the bonus such as 10x. A 10x rollover means that you must wager 10 times the bonus amount prior to requesting a payout.This isn’t as bad as it sounds because both winning and losing wagers count toward the rollover requirement. If you receive a 20% sign up deposit bonus when you deposited $500, you would see a bonus of $100. To fulfill the rollover requirement of 10x you will have to make $1,000 in sports bets. This could be accomplished by placing 20 $50 bets, 10 $100 bets or any other multiple that equals that fulfillment of rollover requirement. Remember it doesn’t matter if you win or lose these bets.After you choose your online sportsbook and earn your bonuses, all you have to do is follow a few profitable sports betting principles and you can become a successful sports bettor.