We run offline advertisements in a number of places. Chamber of commerce, coffeeshop newspaper, golf tournaments, hotel lobby of DoubleTree and Hilton, school newspapers & yearbooks, little league games, hockey stadium, MMA fights, chiropractor and doctor offices. We're in a number of different areas - each with targeted advertisements for the particular client.
The hotels are one of our big places that we hit a few times a year when they're doing their business or workshop type conferences. There's nothing like hitting them with a poster as soon as they get from the carpark to the hotel entrance, and then what better place to advertise than in an elevator they have to go up and down a number of times during their 3 day stay
Golf tournaments are another key market for us. We're not targeting "normal" people when we hit up these places, we're targeting corporate personnel, business owners and people with expendable income.
So depending on your target market, and depending how much money you want to throw at it, the offline market can be very lucrative!