More about search evalution…
Reffering to my previous post about Wolfram Alpha one of my colleagues send me this link today: http://www.psfk.com/2009/05/paid-search-has-to-work-harder-now.html
From the article you can see that paid search traffic has witnessed a decrease… In the article, Fulconi says that though search queries are up 68% over the last couple of years, the growth rate of the number of paid clicks is at just 18%. His hypothesis is that this is because people are using longer search terms, rendering the likelihood of an advertiser bidding to have his or her search results included in the results page less, due to paid advertising strategies that limit ad coverage.
In short, queries are getting closer to real conversation, real natural language, and Google’s algorithms are having a harder time keeping up – matching advertiser demand to our increasingly complex queries.