This might be an interesting way to facilitate conversation in classes and professional development.
customized feed
FriendFeed enables you to keep up-to-date on the web pages, photos, videos and music that your friends and family are sharing. It offers a unique way to discover and discuss information among friends.
It’s also fast and easy to start discussions around shared items. On FriendFeed, you and your friends contribute to a shared stream of information — information that you care about, because it's from the people that you care about.