A few people asked me to setup a Facebook group, so that people could meet, share and discuss geocaching stuff on Facebook. Our Facebook Page that we've had going has been great for announcements, but not informal discussions. Use it to ask for hints on caches you can't find or see if anyone's interested in going geocaching sometime with you. It is intended to be more social than what we have here on our e-mail list. So here it is: http://www.facebook.com/groups/133110390112003/
Feel free to join if you're interested.