buckworks - 9:57 pm on Jun 24, 2012 (gmt 0)
Why more actions than clicks?
I think it's because people can click the "Like" in your ad without actually clicking through to the page.
Is there a reason why one wouldn't want this?
One reason: if it cost 39¢ per like and those folks didn't (eventually) do something that put the 39¢ back in your pocket.