Social overlays: augmenting existing UIs with social cues.

Social Overlays is a novel toolkit that provides a generalized mechanism for implementing socially-based help on the Web without requiring access to the source code for the target application. As such, third-party developers can use Social Overlays to augment any existing web-based UI with a variety of social navigation cues. We demonstrate the capability of Social Overlays through an example application augmenting the standard PHP configuration page.