[Originally posted 16 July 2008. Updated 22 September 2009 (Research Archives and Mummy Meresamun added]
There are several OI related facebook groups. There first of these appears to be an officially sanctioned presence, with a focus on the museum. Each of the others is user-generated. You may have to sign up for facebook to see these pages, I'm not sure. If you're not already there, it's high time you tried it, so set up your profile and join the groups that interest you!
Oriental Institute- University of Chicago
Research Archives of the Oriental Institute
Zincirli Excavation 2008
We dig the Oriental Institute
I Live In the OI Research archives