Social media promises to be the next biggest marketing arena in town. However, the rules are quite different on social networks like Facebook, MySpace, and Twitter for marketers than for conventional formats like TV commercials or direct marketing campaigns. A more subtle approach is needed due to the policy that many social networks do not allow direct solicitation of their members. Even so, you can see that making money online at a place like Facebook can be done, but not as directly as with other types of income-generating sites.