KQXI

1550 AM KQXI was a Denver station licensed to Arvada, Colorado.  Revolving formats included Top-40, Country Gospel and MOR.  1550's last gasp was as a Radio Disney affiliate but the station went dark and turned in its license to the FCC in 2003.

KFKF

94.1 KFKF has been a Country music station in Kansas City, Missouri since 1982. 

KJUG

KJUG is a Country station licensed to Tulare, California.  106.7 FM went on the air in 1965 with the call letters KDFR.  According to this large FCC document, KDFR's license was revoked for unspecified reasons in 1968.  At some point the call letters became KWSM and switched to KJUG around 1977.

A 30th anniversary gold foil sticker.

WJMK

A magnet, chip clip and t-shirt from WJMK in Chicago, Illinois.  The former WJEZ flipped from Country to Oldies in 1984 and became "Magic 104".  Changes in station branding to "Oldies 104.3" and "104.3 Jack FM" followed, along with a transition to Adult Hits.  WJMK is now known as "K-Hits 104.3"

KFOR

1240 AM KFOR has been broadcasting in Lincoln, Nebraska since March, 1924.  In 2005 they stopped playing music and switched from full-service Adult Contemporary to their current News/Talk format.

WZTA

WZTA "94.9 Zeta" was a Rock station in Miami, Florida for almost two decades.  The former Top-40 outlet known as "I-95" WINZ flipped to Classic Rock in the late 1980s and also carried Alternative and Active Rock formats in its time as WZTA.  94.9 FM flipped to Hispanic Urban (now Spanish Contemporary) "Mega 94.9" in 2005.

WLS

WLS 890 AM was originally owned by Sears, Roebuck and Company hence the call letter meaning of World's Largest Store.  They are one of the original 50,000-watt clear channel stations and went on the air in April, 1924.  WLS's standard bearing Top-40 era began in 1960 and lasted well into the mid-1980s when a transition to Adult Contemporary and Oldies began.  Talk shows then started appearing alongside music programming and by August, 1989 WLS dropped music altogether to go 24/7 Talk.
Some great WLS tribute and history sites can be found online.  Another semi-complete set of WLS stickers can be seen here.

WNEB

Stickers and a magnet from Religious station WNEB (W New England Broadcasting) in Worcester, Massachusetts. 

WBOW

WBOW (W Banks Of the Wabash) began broadcasting at 640 AM in Terre Haute, Indiana in the late 1980s.  After the owner was convicted on 12 felony charges, WBOW's license was pulled and the station went silent in 2001. 

KINY

800 AM KINY began broadcasting in Juneau, Alaska on May 31, 1935.

KCAR

"Cool 104.3" was an Oldies station licensed to Galena, Kansas.  The frequency is currently "Star 104.3" and carries a Hot AC format.  Sometime around 2007 KCAR switched their city-of-license from Galena to Baxter Springs, KS

Boom FM

Boom FM is a network of Classic Hits stations in Quebec and Ontario.  They originally went on the air in 2003 with two outlets; CFEI 106.5 FM licensed to Saint-Hyacinthe, QC and CHRD105.3 FM in Drummondville, QC.  CFZZ 104.1 FM in Saint-Jean-sur-Richelieu, QC and CFVM 99.9 FM licensed to Amqui, QC joined in 2005.  Boom FM later added English-language stations in Ontario including 97.3 FM CHBM in Toronto.

WZZN

A deck of playing cards from WZZN "94.7 The Zone", a short-lived Active Rock station in Chicago, Illinois circa 2004.  94.7 FM is currently a Classic Hits outlet with the resurrected WLS-FM call letters which the frequency carried in the mid-to-late 1960s.

Xtrema 92.1 FM

Xtrema 92.1 FM was a radio station in Cabimas, Venezuela. The website URL on the sticker is no longer valid and their Facebook page went dormant at the end of 2010 which leads me to believe they are no longer on the air.

Classic 21

Classic 21 is heard on eight frequencies throughout French-speaking central and southern Belgium.  Based in Mons and owned by RTBF--Belgian Radio and Television of the French Community--they play classic rock and pop music.  Can anyone identify the guitarist on the sticker or is it just a stock image?

WTLR

89.9 WTLR is a Religious station licensed to State College, Pennsylvania.  Way Truth Life Radio is simulcast on two other stations and a translator.  WTLR went on the air on January 1, 1978.

WMRS

Adult Contemporary station 107.7 WMRS went on the air in Monticello, Indiana in March, 1989.

WJOD

WJOD plays Country music in Dubuque, Iowa.

WGBH

89.7 FM WGBH (W Great Blue Hill--the station's transmitter site and highest point in the area) airs National Public Radio programming and Jazz music on weekends.  Classical music was dropped on the station after their acquisition of WCRB in 2009.  WGBH went on the air in Boston, Massachusetts in 1951.

CJAT

Stickers and a magnet from CJAT, the main station in a network which was branded as KBS (Kootenay Broadcasting System) licensed to Trail, British Columbia.  CJAT is now known as "EZ Rock" and carries an Adult Contemporary format.