Well, after seeing JC's "Birthday" thread, was thinking perhaps it would be interesting to add in "birthday" to someone's profile (possibly with "year" optional for those that don't want to specify their age). Then, at some part of AO (possibly on a page buried like the "tools and toys" page), you can add a "list of approaching birthdays" (maybe just limited to people that have logged on withint the last two or three months?). Might be a neat addition to the community (IMO, obviously).