Thought this was pretty interesting, especially in how a West Marches campaign can deal with the problems of having more players interested in a game than you can accommodate at the table, and the dreaded specter of scheduling issues. Might try to run one myself at some point!
This is an old concept, isn’t it?
I don’t know how old it is, but it’s certainly not new. The article linked is one I read several years ago before I ran my own West Marches game.
Edit: the post is dated 2007.
That’s the original post.