http://g4c3eya4clenolymqbpgwz3q3tawoxw56yhzk4vugqrl6dtu3ejvhjid.onion/communication_tools.html
Irssi (IRC) no yes no depends on the server no no yes usually, yes no usually not no no no Mumble no yes no yes no no yes no no no ? yes ? Email depends on the provider yes no usually, yes no yes *5 depends yes usually not yes no no no Pixiv no yes no yes *2 no no no yes no yes ? ? no Facebook yes yes no yes ? ? no yes no yes ? ?