First of all let me commit the crime and then plead innocence.
I recently found out that the 3rd Quantum Gravity and Quantum Geometry (QGQG3) School is being held in Zakopane, Poland from Feb 28 - March 11, 2011. The list of speakers is wide-ranging and impressive. I especially encourage all my string theory friends on this site to attend so that you can hear the story from the horse's mouth, so to speak ;)
Given that we have a lively and growing community which has the potential to seed highly productive inter-disciplinary collaborations, it seems that there should be a bulletin board where we can share such announcements. This sort of arrangement could, along with the recent suggestion of a physics journal club, be one of the adjunct social functions this site could easily provide. Or maybe not so easily. It is easy to offer suggestions when you are not the one who has to dig into the entrails of the site's code to make changes :>/ In the absence of any specialized tools we could, by common consent, make use of meta for such announcements.
How does the community feel about this possibility?