Betting groups, also known as pools, are organizations of people who come together to place bets on a variety of events. These groups can range from small gatherings of friends to large-scale operations with hundreds of members. Pool members typically contribute money to a common pot, which is then used to place bets on the outcome of a particular event. The winnings are then divided among the members of the pool. Pool betting is a popular form of gambling, especially in countries where traditional forms of gambling are illegal or heavily regulated.