'subsite' is my choice, and Jakob Nielsen's long-time pertinent definition solidifies that for me (see link above in thread). I can post a summary for anyone too busy to read it.
Otherwise consider 'world' in place of 'community' or 'neighborhood'. It's very nontechie, and used this way in TV land ("Andrew's world" "Sewing world" etc from "While you're out" "changing rooms", BBC-,Mysterious- ) and movie land (ghost-, Buster's, etc.) and book land (Known-, Brave New- etc. including one of my favorites: Carl Sagan's Demon-haunted-). Can you see it? Developer's-. Openacs-, dotWRK's-, Talli's World..
Hmm.. 'land' and 'planet' are variations. 'Planet' doesn't translate as well. 'Land' is too 2D.
Enough! back to work, Torben! =)
