While reading old ETech stuff, I stumbled across notes from "Transcendant Interactions" Stewart Butterfield, Ben Cerveny and Eric Costelloby. I fully agree with their manifesto:

Manifesto: Don't build applications. Build contexts for interactions. and: - Not application based computing (completing tasks) - Not document based computing (better understanding of what you have) - Relationship-based computing (ever-changing view of the docs you have access to, that others have access to, and your relationships with people)

The blogroll AND the blog for instance offer a context for interacting since a blogpost can 'ground' the interaction and embed it into a context (for instance discussing this blogpost). The blogpost in itsefl is a reason to write to the author and discuss his point with him.