Online gambling or gamblng online is a general term for gambling using the Internet.

Online poker is the game of poker played using the Internet. Online poker websites offer Texas hold 'em, Omaha, Seven-card stud, razz and other types of poker games in both tournament and ring game structures. Players play against each other rather than the "house", with the card room making its money through "rake" and through tournament fees.

Online casinos, also known as virtual casinos or internet casinos, are online versions of the traditional casinos. Online casinos enable gamblers to play and wager on casino games through the Internet. There are a large number of casinos online, in which people can play casino games such as roulette, blackjack, pachinko, baccarat and many others. These games are played against the "house". The casino house makes money due to the fact that the odds are in its favor.

As above, online sports betting are betting for sporting events on the internet. Bookmakers and betting exchanges offer fixed-odds gambling over the Internet on the results of sporting events. This is used mostly by users who are in areas where sports betting are illegal. Sports betting online allows bettors to make their sports wagers with illicit bookmakers on the Internet, where thousands of online bookmakers accept wagers on sporting events around the world.

Online bingo is the game of bingo that is played over the Internet. Online bingo sites use a random number generator instead of bingo balls. Online bingo halls usually offer online casino games as well as the bingo, but the actual bingo play works almost exactly like playing online poker or online casino games, with everything being virtual. One notable feature of online bingo is the chat functionality. There are a number of online bingo rooms offering games on the Internet. Successful online bingo sites foster a sense of community and interaction between players.