I have been asked by adsense if I would like to try ads that stay fixed in place when the user scrolls i.e. remain visible in the sidebar when the user moves up and down. They are only to be used on desktop, not tablet/mobile.
Until now these have not been available to publishers as far as I know, but sound like a good thing for long pages.
Has anyone else tried them and found them successful? (Generally I don't use sidebar ads because they don't earn much but 'always visible' ads might be different?
Note: don't try them unless you have heard from google that you can, they are NOT usually permitted.