OLAC: The Open Language Archives Community Steven Bird Gary Simons University of Pennsylvania SIL International OLAC, the Open Language Archives Community, is an international partnership of institutions and individuals who are creating a worldwide virtual library of language resources by: (i) developing consensus on best current practice for the digital archiving of language resources, and (ii) developing a network of interoperating repositories and services for housing and accessing such resources [www.language-archives.org]. The work builds on the Open Archives Initiative (OAI). The OAI was launched in October 1999 to provide a common framework across electronic preprint archives [www.openarchives.org], and it has since been broadened to include digital repositories of scholarly materials regardless of their type. We will demonstrate the OLAC data providers, the OLAC virtual data provider, and the OLAC mini-repository system. We will also demonstrate the OLAC search interface, which provides one-step access to the catalogs of a dozen archives in five countries (Germany, Netherlands, France, UK, USA), having a combined total of some 18,000 records. Production versions of these prototypes will be incorporated into the LINGUIST website [www.linguistlist.org].