In 2013, Google removed 350 million bad AdWords ads as part of its efforts to prevent abuse of AdWords by both advertisers and AdSense publishers, although unfortunately they don't detail much about why those particular ads were removed.
The search engines are doing a lot to counter click fraud, but there's still more to be done. They need deeper collaboration with third-party firms to reassure advertisers that their money isn't being wasted on bad clicks.
I’ve updated this post with several clarifications. I’ve also blogged separately about how these numbers should be looked at, in Fair Isaac ... read more
With many legal restrictions behind them, the search engines are enjoying their newfound freedom to share details of their click fraud-fighting efforts.
A new VP-level focus and increased transparency mark Yahoo's commitment to fighting click fraud and addressing other marketplace quality issues.
Donna Bogatin has an interesting post on ZDNet entitled, Google and click fraud: As wholesome as milk? While giving Google left-handed praise ... read more
Last Friday, an independent report on how Google deals with click fraud was published as part of the ongoing Lane’s Gifts v. ... read more
Adam Penenberg takes the US Federal Trade Commission to task for not doing more to prevent clickfraud in his Wired commentary, Click ... read more