As an avid public television watcher, it's not easy for me to identify many GOOD ads, and my first listed here is practically a public service message as much as an ad, but here it is:
HAVING A BABY CHANGES EVERYTHING.
Johnson & Johnson ad campaign
I don't often search Google for ads, but this one is detailed on J&J's Website. And I don't have a baby, and most likely never will.
J&J's baby ads are refreshing. We already know what they sell. That's what so refreshing about it. They don't even have to tell us about their products.
Now a more complex "good ad" campaign is the one for Target. The ads really make me like their advertising campaign. No ads will change what I think of Target. I go to Target regularly, but one must be selective about what one buys there.
What I think of Target is shaped by my experiences at Target, and not by the advertisements. Target=cheap merchandise. Sometimes nicely cheap, sometimes so cheap it should be destroyed. Take for instance the luggage I bought last year. The wheels did not survive the first leg of the first trip in which I used them.