Watching the Web measurement companies trying to keep pace with changing audience habits on the internet is a bit like watching the credit rating agencies attempting to keep up with the latest trends in sub-prime mortgages: by the time the score-keepers work it out, the rest of the world has pretty much figured out what’s going on.
comScore’s latest stab at defining the internet search market is of interest nonetheless. It has changed its methodology to reflect the fact that many searches these days originate on affiliate sites, not the main search engines themselves, and that internet users often carry out different types of search for the same query by clicking on the "web", "images", "news" and other tabs – something known as "cross-channel search." It has also started to include results for search queries on "vertical" sites like eBay and Amazon. These are the highlights: