Whether you are a fan of Google's new Instant search or not, if you are running a PPC campaign then this post will be of interest to you.

There appears to be a glitch in Instant search that could be costing top spot advertisers dearly. Whilst Instant search is turned on, if a search returns Adwords ads above the organic SERPs and you hit enter twice in the search field you will automatically open the number 1 Adwords result. This costs whoever is in the top spot, but the user won't have made the choice to click the ad, so what will they do? Click back, because they were expecting a Google search results screen.

This will have a detrimental effect on top position bounce rates and could be wasting a great deal of advertiser's budgets.