Finally, I would email then call.

I would email the local site directory and website grader reports to my prospects. Give them a day to follow up, and then call.

Of course, I would try to discover the owner's name because it is better to ask for "Tim" than "Holliday Cleaners' store owner" (that just usually means it's a sales call, and I know my dad never answers those so I would refrain from sounding like a sales woman).