WorldCat is operated by OCLC (Online Computer Library Center) and is an online catalog of many library collections. The FamilySearch Catalog (previously called the Family History Library Catalog) is now indexed in WorldCat. As a result, searching in WorldCat displays information in the FSC, as well as in other libraries. This is the first time the FSC has been included in any other catalog.
WorldCat also contains the ArchiveGrid discovery interface, which aids in family history research by providing access to over 2 million archival material descriptions, such as documents, personal papers, and family histories held by thousands of libraries, museums, and historical societies. Click here for for additional details as well as this link on Wikipedia.
If you find something in WorldCat that you want to examine in the Family History Library, simply click the link to go to the FSC for details. If a digital copy is available, you may be able to download the PDF (Portable Document Format)— and unlike Google Books, these books are completely searchable. Even if there is no digital copy available on the FSC, you can view the FSC description and the format it appears in, e.g., hardcopy, microfilm, etc. You can also send us a request and we will send you the digital records within a few days.
For more information and examples on how to use WorldCat for your family history research, please see go to the Genealogist.com blogpost.
-- submitted by Denise Doyon