Here's what I've come up with so far in relation to Wi-Fi access:

FREE SERVICE AVAILABLE:

• Argie Cooper Public Library, South Main Street
• Burger King, North Main Street
• The Coffee Break, on the square
• 50s & Fiddles, Depot Street
• Krystal, Madison Street
• Shelbyville Municipal Airport, U.S. 231 North
• Tennessee Technology Center at Shelbyville, Madison Street

PAID SERVICE AVAILABLE:

• McDonald's, Madison Street

HOTELS / MOTELS WITH SERVICE FOR GUESTS:

• America's Best Value Inn, Cannon Boulevard
• Best Western Celebration Inn, Madison Street
• Country Hearth Inn and Suites, North Main Street

Anyone have any additions or corrections? Leave them in the comments below.