Quick Facts - Website for people looking to have affairs - The largest niche dating site in the world - Has been banned in certain countries (most recently Singapore), but still has over 21 million users How does it work? You create a profile based on what kind of affair you are after. There are in-depth questions as well as the opportunity to blur your face in profile pictures! Warning - it seems to send a lot of emails, which isn't smart if you're trying to have a proper affair. How much does it cost? AshleyMadison's business model is based on credits rather than monthly subscriptions. For a conversation between two members, one of the members must pay five credits to initiate the conversation. Any follow up messages between the two members are free after the communication has been initiated. What do the experts say? The site is pleasantly easy to use. Given its emphasis on casual sex, reviewers were surprised by how respectful and NOT pornographic everyone was.