There are a number of items that gives some on-line gambling sites an advantage over the other sites; and there are thousands of sites available over the internet. Because there are so many sites available, it makes the head spin when trying to determine which ones are legitimate, which ones offer the best odds, and which ones offers the most tables of the post popular games that can be played on-line. Here are some reasons that some sites offer more incentives and reasons to stay loyal than others.