ScienceOrganizer is a specialized science data and knowledge management tool designed to enhance the information storage, organization, and access capabilities of distributed NASA science teams. ScienceOrganizer provides a common electronic repository in which science team members can store and share project information. Team members access the system through an intuitive Web-based interface that enables them to upload, download, and organize project information -- including data, documents, images, and scientific records associated with laboratory and field experiments. Information in ScienceOrganizer is "threaded", or interlinked, to enable users to locate, track, and organize interrelated pieces of scientific data. Linkages capture important semantic relationships among information resources in the repository, and these assist users in navigating through the information related to their projects. ScienceOrganizer has served over 250 NASA scientists working in teams at ARC, JSC, and throughout the agency, including teams in astrobiology, astrobionics, ecogenomics, electron microscopy, microbiology, epidemiology, and ecosystem sciences. In addition, the system was adapted and used for evidence collection and analysis by the Columbia Accident Investigation Board. TRL: 7