RefWorks offers advanced search and lookup features to locate references: 1. Advanced search allows searching across multiple fields and saving search strategies. It looks for embedded terms except in the Descriptor field. 2. Lookups provide alphabetical indexes to search by author, periodical, or descriptor. They allow editing or deleting terms from those fields for all related references. 3. Saved searches can be re-run and will include any new references matching the search criteria, while lookups ensure consistency across reference fields.