"This blog in Government Computer News, obviously aimed at public employees, includes guidelines that may help. (I found it because we're working to develop social networking policies for our college as well.)…"
"I found that ping.fm updates both Twitter and FB status with brutal efficiency - I unknowingly posted some very odd status updates after I started using it. (I later realized that Ping.fm allows you to change where your update will be posted, if you…"
With your work in Web Communications at your technical college, I recommend you take a look at Wiziq's virtual classroom and authorstream's power point presentation platform. Both are web based platforms, have a bunch of features and free basic service.