I have searched high, low, far and wide but can not find anything on the Internet that lists the available attributes for these schemas. Does anyone know where the documentation is for these? so far I know of:
http://axschema.org/namePerson/first
http://axschema.org/namePerson/last
Well I cannot see axschema.org online anymore. But based on http://groups.google.com/group/axschema/browse_thread/thread/49312a23a7d5ecce# I think [http://openid.net/schema] superseeds [http://axschema.org].
Here is the list, also on http://openid.net/specs/openid-attribute-properties-list-1_0-01.html.
http://openid.net/schema/namePerson/prefix
http://openid.net/schema/namePerson/first
http://openid.net/schema/namePerson/last
http://openid.net/schema/namePerson/middle
http://openid.net/schema/namePerson/suffix
http://openid.net/schema/namePerson/friendly
http://openid.net/schema/person/guid
http://openid.net/schema/birthDate/birthYear
http://openid.net/schema/birthDate/birthMonth
http://openid.net/schema/birthDate/birthday
http://openid.net/schema/gender
http://openid.net/schema/language/pref
http://openid.net/schema/contact/phone/default
http://openid.net/schema/contact/phone/home
http://openid.net/schema/contact/phone/business
http://openid.net/schema/contact/phone/cell
http://openid.net/schema/contact/phone/fax
http://openid.net/schema/contact/postaladdress/home
http://openid.net/schema/contact/postaladdressadditional/home
http://openid.net/schema/contact/city/home
http://openid.net/schema/contact/state/home
http://openid.net/schema/contact/country/home
http://openid.net/schema/contact/postalcode/home
http://openid.net/schema/contact/postaladdress/business
http://openid.net/schema/contact/postaladdressadditional/business
http://openid.net/schema/contact/city/business
http://openid.net/schema/contact/state/business
http://openid.net/schema/contact/country/business
http://openid.net/schema/contact/postalcode/business
http://