Media.sas.upenn.edu is a special server in SAS that's used to host audio, video and other multimedia materials. The server can deliver streaming quicktime files, or a variety of popular formats for download (Quicktime, Flash, mp3, m4a, Windows Media and more).
The University has set up a Class Mailing List for every official University course. The class mailing list has already been set up by the beginning of the semester. The instructor of record can send email to the list. Our data systems populate each class list with the addresses that are in the Penn Directory for every registered student in the class.