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.
OLAC is part of a larger community known as the Open Archives Initiative. The OAI develops and promotes interoperability standards for digital archives, and currently spans dozens of archives and a total of over a million records. The OAI community page lists OAI mailing lists, archives, and websites.
OLAC Archive metrics at http://www.language-archives.org/metrics/