Yahoo, ComScore, Nielsen and many industry pundits are questioning the digital advertising industry's currency.
Page Impressions are outdated - they aren't a true measure of a users interaction or use of a site. Monthly Unique users are overly flattering given that they measure reach over a month, rather than a day, hour (like Newspaper, Radio, TV).
More worrying for industry beheamouths, Google and MSN (even Yahoo), between 4-6 percent of a users time is spent on Search. But search accounts for over 40% of internet ad revenue, so something is out of sink.
So advertisers and agencies need to work on new metrics to measure the value of their campaign? Perhaps.
Could this be a threat to searches dominance? Unlikely. You can't really argue with the results from a search marketing campaign and this is what has driven the industry. The fact people spend less time on search versus destination sites may actually favour the advertiser - since they less engaged and more likely to be pulled away.
If advertisers do follow time-spent or another metric, the big guns will want to have a hold on the market if it moves...and this could be what's behind their acquisitions of DoubleClick (Google), Aquantive (Microsoft) and Right Media (Yahoo).