| WorldCat | Search the collections of 60,000 libraries in 112 countries and territories worldwide. |
| SUNY Union Catalog | Search the collections of 60 SUNY libraries from this single, new (2006) union catalog. 18 million ++ volumes! |
| Nearby SUNY Library Catalogs | Search library web pages and catalogs of SUNY college libraries near GCC. |
| Other SUNY Library Catalogs | Search library web pages and catalogs of other SUNY college libraries. |
| Nearby Academic Library Catalogs | Search library web pages and catalogs of non-SUNY college libraries near GCC. |
| WNYLibraries.org | Search a new virtual union catalog (VUC) of a growing group of Western New York libraries. |
| Buffalo & Erie County Public Library | Search a union catalog for public libraries in Buffalo and Erie county. |
| Monroe County Library System | Search LIBRAWeb, a union catalog for public libraries in Rochester and Monroe County. |
| Nioga Library System | Search a union catalog for public libraries in Niagara, Orleans and Genesee counties. (Includes Richmond Memorial Library in Batavia) |
| Pioneer Library System | Search a union catalog for public libraries in Livingston, Wayne, Ontario and Wyoming counties. |
| New York State Electronic Doorway Libraries | Search library catalogs and web pages from all regions of NY State. |
