Already a member of YGL here in DC, actually! I'm going to their event next week with the speaker from OMB, actually (just what I need in my life, after just getting done with FY 2011 budget justifications--yet *more* interactions with OMB...). LOL.
I generally see the "young" set in most agencies/offices I've been in (if they have one) usually being people in their early thirties, even among the fairly young office I currently work with, I'm still the "baby"...Glad to hear I'm not the only one under 30 out there! 🙂