2018-10-02 UTC
# ↩️ FOAF was unnecessary reinvention of vCard, still is.
#PortableContacts bad news, now zombie site https://indieweb.org/Portable_Contacts
XFN still here, mostly rel=me; Mastodon added support.
#vCard4 #hcard have most interop across devices apps sites: http://tantek.com/t4wk2 ( twitter.com/_/status/1046928847239823361)