Jonathan Boutelle writes:
Attention is a hot topic on the internets. Most of the metadata that is used in cataloging and searching the web is very labor-intensive to create.
Google made it’s first quadrillion by being the first to use the metadata inherent in hyperlinks to catalog the web. This was, of course, awesome. But the only people allowed to contribute metadata in a google-based world are web publishers.
Del.icio.us and Flickr have made it easier for people to play along at home. Instead of using links, they use tags, which require much less effort to contribute. But lets face it, the people tagging are, for the most part, the same people who are blogging.
Attention is the general idea of paying attention to what people _read_ on the web, and using that to give better search results.