The station that I sometimes listen to is at http://www.cowboyculturalsociety.com/ though it looks like they are down at the moment. I am sure that it is temporary. They have 128 and 24kbps streams.   Laura has album reviews and much more on her site.

Here's a three hour sampling of their offerings

5:02 pm - Sons Of The San Joaquin - Charlie And The Boys
5:02 pm - SFX-2 - Rifle Shots
5:00 pm - Asleep At The Wheel - Big Ball's In Cowtown - George
4:58 pm - Sons Of The Pioneers - When Payday Rolls Around
4:56 pm - Pat Richardson - Cowboy Banker
4:53 pm - Cowboy Nation - Cowboy Way
4:48 pm - Mike Beck - Mi Caballo Negro Poncho
4:48 pm - SFX - Horse Walking Slow
4:45 pm - Katy Moffatt - Black-Eyed Caballero
4:42 pm - Don Edwards - What's Become Of The Punchers
4:40 pm - Woody Guthrie - Cowboy Waltz
4:37 pm - Ian Tyson - I Outgrew The Wagon
4:33 pm - Michael Nesmith - Prairie Lullaby
4:30 pm - Roy Rogers with Morton Scott & His Orchestra - Rock Me To Sleep In My Saddle
4:27 pm - Lyle Lovett - Cowboy Man
4:25 pm - Bob Wills - Can't Get Enough Of Texas
4:21 pm - Don Walser - Big Ball's In Cowtown
4:18 pm - Arkansas Woodchopper - I'm a Texas Cowboy
4:12 pm - Marshall Tucker Band - Desert Skies
4:09 pm - Wylie & the Wild West - The Gather
4:02 pm - Tom Russell - The Sky Above, The Mud Below (Live)
3:59 pm - RW Hampton - The Hangin' Tree
3:56 pm - Ken Maynard - The Cowboy's Lament
3:52 pm - Willie Nelson - Mamas Don't Let Your Babies Grow Up To Be Cowboys
3:52 pm - Roy Rogers - Roy Rogers riders club prayer
3:47 pm - Michael Martin Muphrey - When the work's all done this fall
3:44 pm - Montana Slim - My Little Grey Haired Mother In The West
3:38 pm - Patty Clayton - An El Niño Story
3:36 pm - Johnny Cash - Bury Me Not On The Lone Prairie
3:26 pm - Baxter Black - He Sang -Little Joe The Wrangl
3:22 pm - Katie Lee - Ten Thousand Goddam Cattle
3:22 pm - Slim Critchlow - Ten Thousand Cattle
3:18 pm - Mary McCaslin - Prairie In The Sky
3:15 pm - Gary Fjellgaard - Dancing In The Grass
3:15 pm - SFX - Rattlesnake
3:10 pm - Waddie Mitchell - Teepee
3:05 pm - Bill Miller - Dreams of Wounded Knee
3:01 pm - Steve Earle - Me And The Eagle
2:55 pm - Chuck Pyle - Outlaw's Dream
2:51 pm - Slim Pickens - Desperados Waiting For A Train
2:47 pm - Cotton Yancy - The Cowboy
2:47 pm - SFX-2 - Horse Whinny 2x 6sec
2:43 pm - Skip Gorman - Ridge Running Roan
2:39 pm - Peter LaFarge - Pony Called Nell
2:34 pm - Ramblin Jack Elliott - Me and Billy the Kid (wPeter Rowan)
2:32 pm - Rex Allen - A Human Coyote Stole My Girl
2:30 pm - Tex Ritter - Lady Killin' Cowboy
2:24 pm - Katy Moffatt - Me And My Uncle
2:21 pm - Dan Roberts - Everybody's Hocked A Saddle
2:15 pm - Rogers Roy - Home on the range
2:12 pm - Mary McCaslin - Wayward Wind
2:08 pm - Dave Stamey - Mountians Of The Heart
2:06 pm - tex owens - while i'm nealy home 1994
2:04 pm - Belinda Gail & Curly Musgrave - Yodel Blues