Linked Data is about using the Web to connect related data that wasn't previously linked, or using the Web to lower the barriers to linking data currently linked using other methods. This site exists to provide a home for, or pointers to, resources from across the Linked Data community.
W3C POWDER Working Group. The POWDER Working Group is specifying a protocol for publishing descriptions of (e.g. metadata about) Web resources using RDF, OWL, and HTTP.
voiD (from "Vocabulary of Interlinked Datasets") is an RDF based schema to describe linked datasets. With voiD the discovery and usage of linked datasets can be performed both effectively and efficiently. A dataset is a collection of data, published and maintained by a single provider, available as RDF, and accessible, for example, through dereferenceable HTTP URIs or a SPARQL endpoint.
When you submit a uri, it will be matched against datasets with a void:uriRegexPattern property. Matching datasets will have their void:sparqlEndpoints queried for a description of that URI
LinkedGeoData.org is a project by AKSW research group at Universität Leipzig aiming at extracting and publishing geo data collected by the OpenStreetMap.org project as RDF and Linked Data.
C. Bizer, T. Heath, K. Idehen, and T. Berners-Lee. Proceeding of the 17th international conference on World Wide Web, page 1265--1266. Beijing, China, ACM, (2008)