Semantic Web

Formats

• JSON-LD
• Microdata
  • itemscope, itemtype, itemid, itemprop, itemref, datetime
  • Wikipedia
• RDFa
• microformats
• I would argue that the semantic HTML tags (article, time, meter etc.) are a kind of format

Vocabularies

• microformats
• schema.org
  • established by search engine operators Google, Microsoft, Yahoo!, and Yandex
  • The only vocabulary interpreted by Google
  • Development version

Resources

• RDFa predefined vocabularies
• Linked Open Vocabularies

  they collect and index open vocabularies

  • Source