But, is RSS the preferred communication channel? Studies show that email has become the "old" person's mode of communication. RSS is used by many. But, text messaging has become a preferred mode of communication - just ask the political pundits about the role txt played in this year's campaign!
Faculty members can keep in touch with students around the clock all semester (and beyond). With a single tweet, a prof can be in the pocket and purses of all of their students - reminding them of due dates, passing along new ideas, nudging them to study, and keeping them appraised of new research.
Simple, transparent, powerful social networking sharing information and helping to build knowledge.