The sheer number of metadata standards in the cultural heritage sector is overwhelming, and their inter-relationships further complicate the situation. This visual map of the metadata landscape is intended to assist planners with the selection and implementation of metadata standards.
Viewshare is a free platform for generating and customizing views, (interactive maps, timelines, facets, tag clouds) that allow users to experience your digital collections (Library of Congress)
The Web Data Inspector is a tool to Visualize and Validate the structured data content available at a given web location (URL). The Web Data Inspector can be used to visualize and validate: RDF files, HTML pages embedding microformats, XHTML pages embedding RDFa