The DASHER Project at USC/ISI has focused upon helping organizations with rapid-response mission requirements by providing information analysis tools that help make sense of sets of data sources in an intranet or internet: characterizing them, partitioning them sorting and filtering them. This paper focuses on a subset of these tools that help individuals in the organization to collaboratively, both synchronously and asynchronously, form task-oriented information repositories. Also, the paper discusses planned extension of the tools to support collaboration in a mobile computing environment.