I first became a fan of westerns through the pulps of Clifton Adams, William MacLeod Rainey, and Max Brand. Soon I was devouring everything I could find by William Johnstone, Larry McMurtry and other masters of the genre. Don't know if there are any other devotees here, but can't resist passing on these freebies.
Free Westerns today from Amazon:
Mobley's Law by Gerald Lane Summers, first published by Telemachus Press, 2011
The Reckoning by Robert J. Thomas