From an OCLC Announcement:
OCLC has added more than 1.2 million brief bibliographic records to WorldCat.org for materials held by Arab libraries, records that represent the complete catalog of the Arabic Union Catalog (AUC) maintained in Riyadh, Saudi Arabia. Each record from the AUC in WorldCat.org contains brief bibliographic information for items held by AUC members with a link to the full record and holdings information in the Arabic Union Catalog.
WorldCat, the world’s most comprehensive database of resources in libraries, currently includes 1.4 million records coded for Arabic language (ara) and more than 710,000 records containing true Arabic script. OCLC member libraries contribute to WorldCat to further access to the world’s information through library cooperation. Anyone can search WorldCat.org through the Web.
The Arabic Union Catalog, launched in November 2006, is an initiative of the King Abdulaziz Public Library. The AUC is a non-profit, library services organization dedicated to providing a cooperative space particularly for those libraries worldwide that collect, manage and disseminate materials written in the Arabic language. The union catalog itself is the first realization by an Arab organization to produce and make available a reliable source of high-quality, standardized bibliographic material in the Arabic language.
Read the Complete Announcement