Deciding to add billboard advertising to your marketing campaign can have many positive effects. Not only does out-of-home advertising build brand awareness, but it helps push out your campaign to a potentially huge audience. When it comes time to purchase billboard space you have options. Locally-owned and operated outdoor advertising businesses typically have the most regional knowledge and experience. A billboard franchise company is often a local branch of a larger conglomerate with established practices to follow. You can even strike out on your own and connect with individual billboard retailers to find the best location for your ad.