There are many starfleet organizations in SecondLife - StarFleet Command SecondLife Quadrant, Raven Fleet, but the one I like most is United Federation StarFleet.
UF Starfleet, located at Starfleet Sector001, consists of a single-island SIM with modern buildings, scenic relaxation areas and memorials, a volcano, a 19-th century merchant boat, and last but not least, multiple space stations high up in the sky.
The organization offers a variety of activities - very professionally presented educational classes, role-playing, partying, or just general socializing. Unlike the SFCSLQ which has a concentration of power, UF Starfleet trully has many officers holding many different ranks and responsibilities.
I recently took some pictures of the SIM and created a youtube video.
Let's see what's out there in space and in virtual world