BoardGameGeek is also a large, international community with over 400,000 users. One major activity is the creation of GeekLists, which are lists of games based on a particular theme, or games that people want to trade. There are forums in which members discuss such issues as the correct rules, particular game mechanisms, or where to buy an unusual game. Gamers can also get to know each other online by using the chat room and asking and answering "GeekQuestions."