Whether commuting by car, bus, or train, I find myself watching the world — and billboard ads — go by. Billboard advertising has come a long way, from signs painted on barn roofs to sleek, powerful advertisements and multimedia sensations.

Billboard advertising isn’t your typical inbound marketing strategy. It relies on the customer coming to the ad instead of sending it to the customer. However, I find it’s a powerful way to build brand awareness, support other marketing channels like blogging, online lead offers, and SEO, and reach new audiences.

I’ll share everything I know about billboard advertising in this article, including my secret weapon for low-cost billboard advertising, to help you maximize your out-of-home (OOH) marketing efforts.