This rings true in my personal use of social media (see here re Foursquare) as well as in a lot of the thinking that has gone into what will happen to learning materials as they migrate from print to digital.
The one thing missing from the article that I think is a critical element is narrative thread. Here are some comments of on how that applies to education.
Go read Shane’s article – you will learn something. Then friend me on Foursquare. You will be pwn’d.