Hey, Did Ya See That?

Some of the best ads are the ones you don't quite realize are ads. They're just interesting videos that convey a certain attitude, a trendy or cool or sexy or ritzy vibe. Oh, and a product or service someone wants you to buy is part of the scene. These are stealth ads.

And if these ads are clever enough, people will send them, or at least a link to them, to their friends. In this way, they spread from person to person. They are viral ads, and they are becoming increasingly popular, as this NPR story reports.