Elena Rossini ⁂@osma @cheeaun great points and actually Friendica has Google+ like Circles (possibly Hubzilla too, but I have yet to try it)
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.