MUSHes I Play
ElendorMUSH
Elendor is a Tolkien-themed MUSH, set at the beginning of the Lord of the Rings. You can play a character in any of the major races (human, hobbit, elf, dwarf and orc) in just about all the cultures of Middle-Earth. Elendor is the first MUSH I played on (and the only role-playing game I've ever stayed on for long), almost always as a hobbit in the Shire called Talvo (which is where the name comes from), though I've also played some other characters, including Will Whitfoot and Merry Brandybuck, over the years. Elendor is a great game, and very friendly towards people new to MUSHing.
mush.elendor.net port 1892.
M*U*S*H
M*U*S*H is an eclectic community of artists, experimenters, learners, and teachers. Here, players can create things that will move others intellectually or emotionally, explore uncharted territories in interactive text-based environments, and freely share knowledge and skills in a constructive and friendly setting. It's also where Javelin will beta-test new versions of PennMUSH, for what that's worth. (Text stolen straight from the M*U*S*H website.) After popping on at various points since I started MUSHing, I've been hanging out on M*U*S*H regularly for the last couple of years (as Mike).
mush.pennmush.org port 4201.