pettter@Floppy For many regular social groups it's going to be the best compromise between security, privacy, ease of use, and widespread availability.
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.