Google confimred of testing "click counts" display under certain AdWords ads on Google.com search results pages.
As some users have spotted the user interface test, in which a click count was displayed underneath the URL portion of the ad. "In one implementation, the text simply said the number of clicks followed by "clicks."
…and, in the next implementation, the text reads "clicks for this advertiser," seeming to indicate that the clicks aren't for that single creative, but for the advertiser overall."
A Google spokesperson confirmed that the display of clicks was part of a very small experiment on the look and feel of search results pages," reports Pamela Parker. Parker said "it's not clear exactly how clicks were calculated -- are they on that particular ad creative or on every ad featuring that landing page URL, or on every ad placed by that advertiser?"
One would suspect that a click count might encourage users to click on ads that others had previously clicked on. In some ways, displaying a click count just reinforces that relevance (as measured in clicks) is one of the signals Google uses for ranking.
Further, Parker says "Google assured me that the display of clicks is being done in such a way that is consistent with AdWords advertisers' terms of service with Google."