Recent emphasis on stricter educational accountability measures has resulted in a profusion of educational and psychological tests available in today's market. This ERIC Digest has been prepared to meet educators' needs to find information about tests quickly and easily. Three resources discussed are the Test Collection database, the Mental Measurements Yearbook database, and the ERIC database. Three topics are examined: (1) finding tests and other measurement instruments; (2) finding test reviews; and (3) finding studies about a certain test. The Test Collection database can be searched online for tests, using test-related terms as descriptors or identifiers. The ERIC database can be searched online using publication type codes, using test-related terms as major descriptors, and by combining publication type code and specific test-related descriptors. The Mental Measurements Yearbook database can be searched using subject classifications. Test reviews are also available in ERIC, using the descriptor "Test Reviews," and in the Mental Measurements Yearbook and its monthly updates. A test can also be searched using its specific name. (LMO)