just google running stores in your zip and see what comes up. you'll want a store thats specific to running, triathletes or the like. The store I go to here on LI is just that and the employees are great. They are all runners and are all long time employees of the store, not some kid making min wage who couldn't give a crap about your foot strike or even know what it means.
Avoid places like footlocker, sports authority, or any regular retailer. The exception would be buying a replacement pair of the same running shoe.
Edit: Here's a link to a few stores in the Columbus area
running store columbus ohio - Google Maps 
