START-ing to think about user-contributed metadata

Phil describes Prabhakar Raghavan’s keynote about Web N.0 in some detail (at WWW2007), including the following framework for thinking about user-contributed metadata.

User-generated metadata is growing. Anchortext and tags are growing at the rate of 100 Mb/day. Pageviews are around 50-100 Gb/day. Reviews and ratings are small. All of these, are important, but only anchors are central to how people work on the Web.

START metadata:

* Star: I like this * Tag: creating tags on pictures, etc. * Access: you view a page (in a way I can see) * Routing: forwarding things to friends * Text: write a review, blog article, etc.

These are in order of increasing engagement.