LITA has formed the Next Generation Catalog Interest Group. There is also an associated mailing list.
Here is an excerpt from the LITA-L announcement:
NGCIG gives LITA a discussion space devoted to developments in the library catalog, its nature and scope, and its interfaces. It provides a forum for presentations and sharing of innovation in catalogs and discussion of future directions. Collaborations with other LITA interest groups, such as in the areas of emerging technologies and open source software, will provide opportunities for programming.