Here's a short video created by Polycom that highlights their distance learning solution (real presence media manager) enhanced by Lync and Sharepoint.  The “Polycom and Microsoft Education Solutions” video which focuses on thier Distance Learning solution. 

Minute 4 is the start of the demo with Lync and minute 8 highlights Sharepoint.  The total time just
under 10 minutes

http://nagacast.jolokianetworks.com/polycom/polydemo01/samplepreso/sp_ms-edu/