Word of mouth, online (industry websites (retread.org), industry blogs, enthusiast websites (www.jeepforum.com)(moabjeeper.com)(http://rubicon4wheeler.blogspot.com/2012/03/tires-part-3-treadwright-guard-dog-with.html), enthusiast blogs (http://www.frontrange4x4.com/forums/showthread.php?9944-Treadwright-Guard-Dog-Retread-Long-term-Review)(http://www.jeepforum.com/forum/f15/tread-wright-tires-any-good-609726/), enthusiast publications, outdoor recreational magazines (hunting, fishing), and ranching/farming publications.