As the demand for electronic resources continues to grow, so does the challenge of making them easier to find, use, and manage. E-resource products sold to libraries and their metadata (titles, URLs, coverage dates, link schema) are in a constant flux and knowledge bases must reflect these changes so users can easily discover and access the full text content they need. WorldCat is the first knowledge base to harness the collective expertise of its user community by allowing users to approve/reject proposed updates from other users and content providers, submit changes to existing collections, and share custom collections. This unique approach not only increases the quality of e-resource metadata for improved discovery, access, and maintenance, it also saves librarians time and effort related to managing this on their own. In this session, participants will hear candid experiences from Charlie Remy, Electronic Resources and Serials Librarian from the University of Tennessee at Chattanooga, who is actively participating in this group endeavor. This will include a critical look at the pros and cons of his experiences since migrating to the knowledge base in 2012, and an overview of cooperative data management, including successes, areas for improvement and future directions. Audience members will be encouraged to share their experiences and challenges with managing electronic resource holdings and how they might be overcome.