Looks like Google AdWords has been paying attention to some rants from PPC pros. For a while now we’ve been able to see ad stats when individual sitelinks were shown, but not able to see the stats when the sitelink itself was clicked. Recently, advertisers have been seeing small pop ups letting them know of this feature. The report lets you see which portion of the ad was clicked on, whether it was that individual ad extension or if it was some other portion of the ad.
Here’s where you can find the report:
And this is what it looks like: