I just stumbled on this podcast today, but I think it has a lot of relevance to what we've been reading about higher education and social media.
It's an in-depth interview with two academic archaeologists, one of whom is writing a blog targeted specifically at the professional community, and the other seeking to reach out to a wider public. They talk about how social media can be used to enhance conferences ( referencing the 'Twitter back channel', which was new to me. They use their blogs to draw attention to relevant news stories that might not otherwise get much exposure, and to galvanise other professionals. They reference Wikipedia and describe how there have attempts to get more professional archaeologists involved in writing entries. They even reference myths surrounding the digital natives.
A different field, but it touches so many of the topics we've covered in H800, I really wanted to recommend it.