OCLC Office of Research efforts into creating effective authority control support in the online cataloging arena has a long history, but in the last several years we have intensified that effort. Leveraging knowledge gained in authority control research over the past decade, we have implemented a solid prototype system for corporate name authorities. This system is OCLC's first real-time system for authority control. Real-time authority validation systems have existed for some time, but none of those systems took the next step and attempted to correct errors in real time. These are important results for the library community and beyond. First, it will mean more efficient use of expert cataloger time for libraries, whether they are cataloging traditional materials or electronic. Second, it can enable that large pool of Internet users--who are well-educated but are not catalogers-- to contribute usable resource descriptions to the various databases that are now being created around the world.