- Facebook and LinkedIn groups for alumni, including reunion groups
- Microblogging (aka "Twitter") feeds from HBS, including faculty feeds
- Blogs & podcasts, both general and faculty
- Suggested tags for flickr photo-sharing, to help alumni find each others pix (I guess the #HBS Twitter-topic tag is obvious enough)
- RSS feeds (for your newsreader) for general-alumni-news, the HBS Bulletin, and the library
It occurs to me, however, that merely listing the blogs from FAS would be a huge project. Anyone have a clue how many are out there? I would guess: a few hundred active blogs from FAS faculty and staff.

