A Facebook spokesperson talked about the action, via marketing news site ClickZ:
We recently made a change to some pages that show ads on Facebook that allows ads to be replaced with others after an extended period of time. This change was implemented a few weeks ago, and we think this will help people see more relevant ads.
ClickZ notes that this is a way to generate a higher click-through rate on ads. If you don’t click on ads, Facebook will rotate different ones in. It’s kind of a mix-and-match effort to show better targeted ads.
Readers: Have you seen this yet? What do you think?
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