There are a number of businesses and restaurants in walking distance of the Regency Suites Hotel. This Google map shows a selection that may be useful for conference attendees.
Downloadable version with a selected subset of listed business & restaurants in MS Word and .pdf format. You must be logged into klasuers.com to access.
Also, you may find the Midtown Alliance's Midtown Atlanta Online Shop & Dine Map to be useful. It has a zoomable map and lets you filter on type of business (Ex: Bookstore or Pizza).