Plug-n-Plan and this one at Teaching Blog Addict. Also this teacher's explanation of using a Facebook style bulletin board to post her schedule.
Today I saw the Plug-n-Plan Mock Facebook on Pinterest and thought it might be perfect for encouraging choice making, reflection and combining symbols into sentences. Students find their name/picture to replace the standard image. They can dictate a "status update" using communication boards or devices. If needed they can even choose from prepared "status updates". This would be a great accompaniment to journaling or school-to-home notes. Students can "like" other students "status updates" to work on interconnection between students and pro-social behavior.
A mock Facebook is great for reflecting on activities, emotions and the self. A mock Pinterest might be fun to use to hang photos and work on choice making and learning about peers. Discussion can be held about what we learn about a peer who "pins" a picture of himself skiing or herself horseback-riding.
So here are my "Facebook" and "Pinterest" boards. The originals are in Power Point and can be downloaded from the SlideShare web site or you can download from Google Docs (or choose make copy from the pull down menu on the left to save to your own account and edit). You will want to edit the info in the "profile" to fit your class and make it more relevant.
Google Docs version or email me to ask for the .PPTX file.