Not sure the origin of this list, but it is being "re-tweeted".
Interesting to see the list of U.S. stations that have gone off the air in the last two years:
AM KSEW SEWARD AK 4/21/2011
AM WEZZ BRANTLEY AL 11/8/2011
AM WCOC DORA AL 8/12/2011
AM WNRA EUFAULA AL 1/1/2012
AM WEVG EVERGREEN AL 3/14/2012
AM KYHN FT. SMITH AR 2/18/2012
AM KOAI VAN BUREN AR 3/23/2012
AM KCUZ CLIFTON AZ 6/11/2011
AM KYET GOLDEN VALLEY AZ 4/10/2012
AM KEJY EUREKA CA 12/1/2011
AM KWDJ RIDGECREST CA 11/25/2011
AM KAVP COLONA CO 3/12/2012
AM KRBR ESTES PARK CO 10/16/2011
AM KJME FOUNTAIN CO 1/6/2012
AM WINV BEVERLY HILLS FL 10/9/2011
AM WCRM FORT MYERS FL 1/12/2012
AM WQBQ LEESBURG FL 1/14/2012
AM WLZR MELBOURNE FL 2/4/2012
AM WDGR DAHLONEGA GA 1/18/2012
AM WSBX OCHLOCKNEE GA 2/25/2012
AM WGTA SUMMERVILLE GA 7/1/2011
AM WRFV VALDOSTA GA 7/1/2011
AM WKTF VIENNA GA 12/20/2011
AM KVOG AGANA GU 1/5/2012
AM KIPA HILO HI 10/9/2011
AM KORL HONOLULU HI 10/21/2011
AM KYWN MERIDIAN ID 5/2/2011
AM KPTO POCATELLO ID 10/31/2011
AM KRXK REXBURG ID 9/16/2011
AM WZRK NORTHBROOK IL 1/18/2012
AM WZQQ HAZARD KY 8/9/2011
AM WMTC VANCLEVE KY 6/30/2011
AM WIBR BATON ROUGE LA 8/12/2011
AM KDLA DE RIDDER LA 1/22/2012
AM WOMN FRANKLINTON LA 2/4/2012
AM WBYU NEW ORLEANS LA 9/26/2011
AM KBYO TALLULAH LA 1/6/2012
AM WQOM NATICK MA 9/15/2011
AM WTRI BRUNSWICK MD 7/15/2011
AM WMTE MANISTEE MI 11/20/2011
AM WPON WALLED LAKE MI 10/7/2011
AM WIZK BAY SPRINGS MS 2/1/2012
AM WZRX JACKSON MS 1/1/2012
AM WSJC MAGEE MS 1/17/2012
AM DWHNY MCCOMB MS 2/1/2012
AM WCSA RIPLEY MS 1/13/2012
AM WKOR STARKVILLE MS 1/9/2012
AM WBLA ELIZABETHTOWN NC 1/2/2012
AM WJPI PLYMOUTH NC 7/20/2011
AM KIMB KIMBALL NE 10/3/2011
AM KQNM MILAN NM 4/1/2012
AM KTSN ELKO NV 1/24/2012
AM KQLO SUN VALLEY NV 10/21/2011
AM WDCD ALBANY NY 4/1/2012
AM WCER CANTON OH 9/14/2011
AM WSTV STEUBENVILLE OH 12/4/2011
AM KJMU SAND SPRINGS OK 11/7/2011
AM KQIK LAKEVIEW OR 11/1/2011
AM KXET PORTLAND OR 8/14/2011
AM WZUM CARNEGIE PA 3/22/2012
AM WFGI CHARLEROI PA 4/9/2012
AM WVZN COLUMBIA PA 3/29/2012
AM WRDD EBENSBURG PA 8/31/2010
AM WPLY MOUNT POCONO PA 6/27/2011
AM WPAM POTTSVILLE PA 3/26/2012
AM WBSG LAJAS PR 7/24/2011
AM WBSC BENNETTSVILLE SC 11/30/2011
AM WPJF GREENVILLE SC 12/15/2011
AM WHGS HAMPTON SC 9/19/2011
AM WKSC KERSHAW SC 4/1/2012
AM WDKD KINGSTREE SC 4/5/2012
AM WEAF ST. STEPHEN SC 10/31/2011
AM WJPJ HUMBOLDT TN 12/1/2011
AM WCLC JAMESTOWN TN 11/4/2011
AM KIBL BEEVILLE TX 2/14/2011
AM KNGR DAINGERFIELD TX 2/18/2012
AM KCOX JASPER TX 2/23/2012
AM KSET LUMBERTON TX 1/16/2012
AM KTFS TEXARKANA TX 12/21/2011
AM KOBY CEDAR CITY UT 10/31/2011
AM KOGN OGDEN UT 11/4/2011
AM KENT PAROWAN UT 2/16/2012
AM KNFL TREMONTON UT 10/31/2011
AM WOWZ APPOMATTOX VA 11/8/2011
AM WXCF CLIFTON FORGE VA 1/18/2012
AM WRDN DURAND WI 11/21/2011
AM WLWB NEW HOLSTEIN WI 12/20/2011
AM WHJC MATEWAN WV 11/22/2011
AM WRRL RAINELLE WV 10/23/2011
AM KJNT JACKSON WY 11/20/2011
AM KRAL RAWLINS WY 6/21/2011