The following sites are some of the most popular Yard Sale sites on Facebook that I go to:

 

Bristol/Bluff City,TN Online Yard Sale
Kingsport Tn. Name your price yardsale....
Kingsport online yardsale/stephslist
Gate City Online Yard Sale
Church Hill (TN) Online Yard Sale
Piney/Bluff Online Yard Sale
Blountville Tennessee Online Yardsale
Bristol, Tennessee Online YardSale
Chic's Garage Sale
Washington-Sullivan County TN Yard Sale
Kingsport,Tn Yardsalers
Kingsport Free and Unwanted Items
! TRI CITIES TN BUY-SALE-TRADE !
K-Town Online yard Sales
Bristol va/tn yardsale online
Sullivan County and Bristol area yardsale
Sullivan County Yardsale Page [Fewer Rules]
Washington County Online Yard Sale
Sullivan County Yard Sale Page
Bristol Online Sales
Kingsport / Colonial Heights Online Yard Sale
Weber City & Gate City VA Online Yardsale
#1 Best Kingsport Tn Online Yard Sale
Abingdon, Bristol and Damascus Yard Sale
Tricities Yard Sale Treasures
Bristol yard sale of northeast TN and southwest VA
Kingsport Online Flea Market
Tri-Cities, TN, Yard Sales, Trades & Wanted
Blountville Online Yard Sale
Kiersten's Yard Sale Page For The Tri-Cities
Free If You Need Kingsport Tennessee
THE TRI-CITIES TN ONLINE YARDSALE
TRI CITIES TENN. Online Sales - Wanted
Tri-cities Cellphone & Electronics Yard Sale
Free Tricities
Tri-Cities TN cars, trucks, and motorcycles for sale