1. A system for organizing information in a personal information space, the personal information space including at least one data source on a first processing device holding at least a portion of the personal information space, comprising: an element comprising an agent, on the first processing device, specific to the element, the agent communicating with a data source associated with the element and providing interaction data regarding data in the data source, the interaction data including at least one of the amount of use of a data file, the frequency of use of the data file and the characterization of the use of the data file; an interaction evaluation engine on a second processing device for directly extracting the interaction data from the data source via the agent, the engine evaluating the interaction data and returning an output reflecting one or more weighting characteristics of the interaction data, wherein the evaluating comprises using a combination of two or more weighting characteristics; and a data output device capable of communicating the output to a user.