"Social Media" in the Classroom

I came across these two images the other day from some creative teachers:

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgD9py_k0aZrt8BCjOntHWJRUR9E8cBfIBKJWD74wEqfwNXx9uwS-SWHLkIk9q4l71EDaJflM5c_Uyt6ahoihlZbh753_Pb9iicmRIAeJqHyJwMAhVfDYGI3vByh7DJWhoYm4eBzQUkxHs/s1600-h/DSC00825
(sorry I seem to have lost the original blog that it came off of...)

AND

http://www.flickr.com/photos/mownbywhite/6479537243/lightbox/
(this is from a 5th grade teacher's blog found at: http://mesmrswhitesclass.blogspot.ca)


I thought this was a unique way of incorporating ICT into the classroom, without...actually using ICT.

An idea like this allows teachers and students to explore social media on a small scale and within a perfectly safe environment.  This would be a good first step for teachers/parents who have concerns about their students/children using social media networks like Facebook and Twitter and could show them the value in using such things in the classroom.  

Additionally, bulletin boards set up like this are simply a unique and relatable way for students to see/share information.  The "Facebook Wall" is a good way to summarize the learning that is currently taking place in the classroom, as well as a place to share information about the classroom and students, and post events, important notes, and pictures.  

The "Twitter Feed" would be a good place for students to have a place to express themselves.  They could "tweet" about things they learned that day, how they're feeling, or what's on their mind.  I might use the Twitter feed for students to tweet about their learning that day and use it as an "exit slip".  This feed could give the teacher a snapshot of student learning and use it to judge how well a lesson was received that day.  

Interesting concept.

What do you think?  How might you use something like this in your classroom?