List of 212+ MMOs

As of this writing the new site Listible has a list of 212 Massive Multiplayer Online (MMO) including Second Life.
Many of these I haven’t seen or heard about. This is one of the most comprehensive list of MMOs on the web. You can register, create and share your own lists for free. I added my URL shortening service to one of the lists. Could be useful for creating a list of Second Life business ideas.