Pieces on paid advertising: the auction, wasted spend and creative testing, with sources and workings.https://halfpennymedia.com/en-ushttps://halfpennymedia.com/blog/auction-bid-versus-quality/https://halfpennymedia.com/blog/auction-bid-versus-quality/Somebody asked why their cost per click kept climbing when they had not touched a bid in a year. I did not have an answer, so I simulated the auction.Sun, 16 Aug 2026 00:00:00 GMTAuction mechanicsDana Whitlock