All publishers are allocated used only to be allowed three main pages. But now, they are allowed as many as they would like for AdSense ads on any page.
By now, we should know that Google loves to keep things private. Sometimes it does not help that they make necessary decisions, often against the wisdom, but that isn’t always the case.
When you search for something on Google, hands up who clicks on the sponsored links at the top of the page? No, me neither, so why don’t people click on sponsored ads in Google? Read more