In the wake of a firestorm over just how much of social-gaming companies' profits can be attributed to potentially scammy offers and incentives, News Corp.'s MySpace has taken a stand (and, it could be said, taken advantage of the PR opportunity) by coming out vocally against them.

"We're adding a fifth principle (to our developer terms of use) that clarifies a specific use case that we feel is particularly damaging to the user experience: promotions that include hidden renewals without specific opt-in will not be permitted," a company blog post by CEO Owen Van Natta read. "Because it's our belief opt-out offers are misleading and do not have the best interests of the users in mind, we will be updating our Terms of Use this week to better clarify this for users and developers."

What exactly is he referring to? In many of the most popular (and profitable) games built for big social-networking platforms like Facebook and MySpace, players can progress faster in the game by either buying virtual goods with "real" money, or by completing offers and surveys from a