inkdroid : "[T]he Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH)
is an protocol (XML over HTTP) for sharing and harvesting metadata. The protocol is actually quite elegant, and provides a framework for making all sorts of metadata formats available. Essentially it allows organizations to share their metadata in such a way that it can be harvested periodically by service providers. Kind of like RSS syndication, but for metadata."
Allen Day: Video::OpenQuicktime.pm