Abstract: The present invention is directed to a system and method enabling the tracking of users, content and actions in respect to online content; assigning topics to online content; providing such information for analysis at a central systems; and providing an overview of users, content and actions in the aggregate. The processing of online interactions permits tracking users, identifying influential content and users, identifying the type of interactions that users prefer with respect to specific content, and so forth. As such, the system permits targeted and informed interactions with users and content sites, which recommendations are of value to, among others, online publishers, advertisers, search engines and users.

Abstract: A solar energy power source is provided comprising at least two flat photovoltaic panels disposed in co-planar side-by-side relation and an improved support structure for supporting the panels for pivotal movement on a pivot axis that extends transversely of the panels, the improved structure including a single selectively operable drive means for pivoting all of the panels simultaneously and by the same amount of angular displacement.