I love laptop stickers!
I met Ian Kennedy who is the product manager at MyBlogLog, a blogger social network. Here's a summary of his talk at GSP and video. MyBlogLog recently implemented a new feature called "activity streams." An activity stream is a feed of recent activities by your blog friends on various social networks - blog posts, new photos, bookmarks on Delicious, Facebook updates, Twitter updates, etc.
Ian spoke on a panel called Social Networks and the Need for Feeds at Graphing Social Patterns. Feeds help you keep track of what you friends/family are doing and can also be used a social filter for new content discovery. There are privacy issues - the middle ground between all private, and all public.
What caught my attention was how this might change peer knowledge sharing in a group context. A point was made that when focused discussions happen within your group of friends based on a feed item - the conversation can be higher quality than wide open commenting.
I am thinking about the NpTech Tag Stream and the use of a meta feed - (combing feeds of sources of nptech tagged items by specific or know group of people in a particular field). How does it change is you look at as 'social feeds." How useful and manageable is the knowledge sharing. It was mentioned that filtering would be an issues - for example - for nptech stuff - I might only want to follow colleagues blog posts, bookmarks - not everything.
Just some more to ponder ..