Socialwg/Related

For linking to and discussing additional work going on in addition to the Socialwg, especially outside of W3C. Items listed have various licenses, some known to be open, some with known IPR, others without.

microformats.org

All specs CC0 + OWFa 1.0:

microformats2 generic syntax, parsing, and
h-entry format for posts, streams
h-card format for people, companies, organizations
h-cite format for citing references to posts and other web documents
rel=in-reply-to link relation to explicitly link from a reply to what is being replied to.

IndieWebCamp

CC0+OWFa specs:

IndieAuth - protocol for decentralized identity and authentication
webmention - protocol for page to page link notifications
Micropub - API standard for creating social posts

CC0 specs/work (should be easy to add OWFa too)

fragmentions - extension to URL format for linking to text on a page
marginalia - protocol extension to webmention that uses fragmentions for page to text on a page link notifications

Other

GeoJSON - http://geojson.org/geojson-spec.html (CC0-BY)
Dublin Core - http://dublincore.org/
FOAF - http://www.foaf-project.org/

W3C

Org Ontology - http://www.w3.org/TR/vocab-org/
Prov Ontology - http://www.w3.org/TR/prov-o/
VCard Ontology - http://www.w3.org/TR/vcard-rdf/

IETF

IETF copyright/patent licensing (RFC3979, RFC3978) - For IETF publications, IPR is handled on a case-by-case basis. Contributors are required to submit any relevant IPR claims they are aware of. The IETF and the IESG do not take steps to validate any claims.

RFC 7033 "Web Finger" - http://tools.ietf.org/html/rfc7033 (Currently no IPR Claims)
RFC 6749 "OAuth 2.0" - http://tools.ietf.org/html/rfc6749 (Currently 1 IPR Claim from Nokia - [1] )
Internet-Draft: Social URN - http://www.ietf.org/id/draft-snell-social-urn-01.txt (Currently no IPR Claims)
Internet-Draft: More Link Relations - http://www.ietf.org/id/draft-snell-more-link-relations-05.txt (Currently no IPR Claims)

OpenID Foundation

OpenID Connect - http://openid.net/specs/openid-connect-core-1_0.html (http://openid.net/developers/specs/)

Independent Mailing Lists

Activity Streams (OWFa)