Very practicle article – subheading gave further information about the internet processes such as blogging, tagging, explined it all very well and wouldlbebhelpful in evavluating systems (if I ever needed to do that!). By simply defining terms but then putting them in a real life context, this article succeeds where others have just been dry dissertations.Key ideas: “Authoring creates content; links and tags knit it together; and search, extensions, tags and signals make emergent structures and patterns in the content visble. and help epole stay on top of it all.”