As language data and associatedtechnologies proliferate and as the languageresources community expands, it is becomingincreasingly difficult to locate and reuse existingresources. Are there any lexical resources forsuch-and-such a language? What tool workswith transcripts in this particular format?What is a good format to use for linguisticdata of this type? Questions like these dominate manymailing lists, since web search engines are anunreliable way to find language resources. Thispaper reports on a new digital infrastructurefor discovering language resources beingdeveloped by the Open Language Archives Community(OLAC). At the core of OLAC is its metadataformat, which is designed to facilitatedescription and discovery of all kinds oflanguage resources, including data, tools, oradvice. The paper describes OLAC metadata, itsrelationship to Dublin Core metadata, and itsdissemination using the metadata harvesting protocol of the Open Archives Initiative.