How do you handle character-specific information?
RPoL supports groups Public, 0 - 9, A - U, and Z. That's (what?) 32 groups, 29 of which are private, the other three (Public, 0, and Z) being reserved for special purposes.
That does not include the language groups, which I use to simulate "foreign" language and radio traffic.
I assign each player their own private group in which I create topics like Character Development and Personal Notes for each character and player, respectively. It's worked well enough so far, but I typically don't have more than about six players maximum in my games to date because that's all my little pea-brain can handle.