Useful tools of annotation for your websites

1. Linked Open Vocabularies - http://lov.okfn.org/dataset/lov/
    - Entry point to the growing ecosystem of linked open vocabularies (RDFS or OWL ontologies) used in the Linked Data Cloud.

2. Namespace Lookup for annotation (for RDF, RDFa) - http://prefix.cc/
    - Look up namespace for vocabularies (ontologies)

Related articles

• Linked Open Vocabularies Gets an Update
• Microformats vs RDFa vs Microdata
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