The Zine Union Catalog (ZUC) has been a collaborative process from its beginnings at the Zine Librarians (un)Conference (ZLuC) in Seattle in 2009. Zine readers, researchers, and librarians need a unified resource for finding finding and sharing zine metadata and location information. ZineCat will offer a similar benefit to zine librarians, allowing them to share catalog records, metadata, and knowledge. Further, having developed a Zine Librarians Code of Ethics, the zine library community has proved itself thoughtful, loving, and critical, which bodes well for a carefully built tool informed by deep processing and cooperation.