From casinos to one-armed-bandits to bookmakers, there are many different ways in which people can gamble. In fact, whilst gambling has always been particularly appealing to various individuals in society, since the development of the Internet, it is never been easier for people to gamble on various things. In fact, one of the things about gambling is that it is possible to bet on virtually anything - there are famous stories about rich individuals betting on raindrops trickling down windows, with the winner being one reaches the bottom soonest.
Another thing about gambling is that it appeals to people of a wide range of backgrounds, which can make it relatively interesting to study in terms of the psychology of gambling. Actually, gambling can be studied in relation to a wide range of different subjects, including the history of gambling; various mathematical topics relating to the way in which gambling statistics work; various legal aspects of gambling; and much more.
Furthermore, gambling can be used as the basis of a research paper, whilst looking at a much wider topic in general; for example, you may wish to look at the American Mafia and how they make their money, whilst focusing to some extent on various gambling operations that might be used.
To give you some further ideas for topics relating to a range of different subjects, the following outlines a selection of titles.