CKUT

90.3 CKUT is a campus/community radio station based at McGill University in Montreal, Quebec.  Staffing is made up of over 200 volunteers who produce dozens of block-programmed music and spoken word shows spanning many genres.
I recently discovered a great show on CKUT called the International Radio Report which is a weekly roundup of radio-related news and information.  The IRR has been on the air as long as CKUT has and will be celebrating their 30th anniversary later this year in November.  It's only the second radio-related program that airs on an actual AM or FM radio station that I'm aware of.  The only other "radio on radio" program I know of is Radio Survivor which now airs on KXRY in Portland, Oregon.  I'm not including shortwave either, where DXing programs are not uncommon.

Tropicana 102.9

Tropicana Stereo is a network of about two dozen stations broadcasting throughout Colombia.  102.9 FM is heard in the capital city of Bogota.

WTQR

WTQR plays Country music in Winston-Salem, North Carolina. 

WMUU

94.5 FM WMUU was an Easy Listening station licensed to Greenville, South Carolina.  They went on the air in 1960 and were originally owned by Bob Jones University (World's Most Unusual University) before the school sold it in 2012. 

WJSM

WJSM (Witness Jesus Savior Maundy) is a Religious station licensed to Martinsburg, Pennsylvania.  92.7 FM went on the air in 1965 while 1110 AM followed in 1968.

WERE

1300 AM WERE began broadcasting in Cleveland, Ohio on July 6, 1949.  Unlike most stations at the time, WERE went on the air a year after their FM sister station WERE 98.5.  They were a popular Top-40 station in the 1950s, an MOR station in the 1960s and carried News/Talk when this sticker was printed in the early 80s.
The Budweiser Cleveland 500 auto race (later renamed The Grand Prix of Cleveland) first took place in 1982 and every year after until 2007.  The inaugural race was won by local rookie driver Bobby Rahal from nearby Medina, Ohio.

WAKK

1140 WAKK was a Country station from their launch in 1975 until flipping to Urban Gold around 1993.  They were licensed to McComb, Mississippi.

KTEL

1490 AM KTEL is a Sports formatted station licensed to Walla Walla, Washington.

KOST

KOST 103.5 (pronounced on-air as "Coast") is an Adult Contemporary station in Los Angeles, California. 

KGKL AM & FM

KGKL AM & FM are licensed to San Angelo, Texas.  AM 960 currently carries a News/Talk format while 97.5 FM plays Country music.

WZOK

97.5 WZOK is a Top-40 station in Rockford, Illinois.

KASH

KASH plays Country music in Anchorage, Alaska.

Radio Valencia

Radio Valencia is a non-commercial, volunteer-run, community-focused, open format radio station based in San Francisco, California.  They officially launched in November, 2010.

WINQ

98.7 WINQ is a 6,000-watt Country station licensed to Winchester, New Hampshire. 

WRNL

910 AM WRNL (W Richmond News Leader--the defunct newspaper that originally owned the station) was an Oldies station in Richmond, Virginia circa the late 1980s.  WRNL currently carries a Sports format featuring programming from the Fox Sports Radio network.

WQRB

"B95" WQRB plays Country music in Eau Claire, Wisconsin.

CKKI

89.9 CKKI airs Country music in Montreal, Quebec.  They originally operated as an unlicensed pirate station on 106.7 FM before obtaining a broadcast license in 2011.  CKKI is licensed to Kahnawake, QC in the Kahnawake Mohawk Territory, across the St. Lawrence River from Montreal.

KLTX

1390 AM KLTX is a Religious station licensed to Long Beach, California.  They were known as "K-Light" circa the late 1990s but, after an ownership change, are now part of the Radio Nueva Vida network of Spanish-language Christian stations.

Easys

 "Easy 99.1" WPLM is an Adult Contemporary station licensed to (W) PLyMouth, Massachusetts.

 "Easy 101.5" KCLS is a Soft AC station licensed to Leeds, Utah.

105.9 FM WEZV and 94.5 FM WYEZ were simulcast Easy Listening stations in Myrtle Beach, South Carolina from around 2000 until 2007.

"Easy 106.5" WEZI is a Soft AC station in Jacksonville, Florida.

KBPI

Denver, Colorado's KBPI (K Bill Pierson Incorporated--the original owner) went on the air in 1965 and has been a Rock station since 1971.  In 1994, they moved from 105.9 FM to 106.7 FM and are now licensed to Parker, CO.  The 100,000-watt station currently carries an Active Rock format.