Topics the user has researched or expressed interest in learning about. Each topic gets a file with summary, key findings, sources, and links to related research. Not for people/companies (those have dedicated indexes). CREATE when user researches a topic in depth. UPDATE when new information is gathered. Use for: technologies, concepts, industries, trends, etc. This extends the Exa research pattern to all research activities. Cross-references ui:research.exa.people and ui:research.exa.companies for related entity research.