According to Wired, Facebook now allows third-party developers to write small applications that users may embed in their profiles. This is a necessary addition to Facebook’s business model, especially if the company hopes to compete with other social networking sites.
Facebook does have a few rules. My favorite: audio and video players cannot automatically start a clip when a user profile loads. If there’s anything I hate about MySpace, it’s media players that automatically cue up a clip when a page loads. I find this a tremendous waste of network bandwidth.