forum games are excellent, i will create a subforum for this
zoology could be fun too. maybe we could have an interesting facts subforum with a zoology thread in there, or something.
a full system for following things and notifications is planned, and will be implemented soon™. currently the next thing to be implemented is a working permissions system, followed by some actual moderation tools for admins. after that stuff like notifications and a minimal wiki system (and possibly other stuff) will be added.