I mean like on your local TV/radio stations, billboards,... Where the ad would 'simply' explain the concept and its advantages. Could this help to make bitcoin more popular?
EDIT: Or an even better question: should we try to make bitcoin more popular?
if you have a local business where you accept bitcoin as mode of payment it somehow could spark interest local bitcoin users and at the same time get to spread the word about bitcoin. The pizza story is known to us i assume you also knew it. your business may be a place where bitcoin users gather if the word spreads.