The Social Web Working Group has published two First Public Working Drafts:
Micropub: Micropub is an open API standard that is used to create posts on one’s own domain using third-party clients. Web apps and native apps (e.g. iPhone, Android) can use Micropub to post short notes, photos, events or other posts to your own site.
ActivityPub: The ActivityPub protocol is a social networking protocol based upon the ActivityStreams 2.0 data format. It is based upon experience gained from implementing and working with the OStatus and Pump.io protocols.