Content2.0 - Search through the people is Yahoo's strategy

The first iteration of Web search was to literally index pages. Easy to spoof and created far too many results, says Bradley Horowitz of Yahoo!.

Google's version of PageRank was the last and biggest breakthrough so far.

Query composition has problems though, and valuable queries like plumbers in London don't work so well.

Social search for this works much better however, and that's the focus of Yahoo strategy today - using what people say to refine search results.

Yahoo!'s idea is to connect a person with a question to a community of people best suited to answer the question.