This is interesting, and the stations are easy to find. Go to radio-locator and type in the name of a market. Don't adjust it to "Local" or "Fringe"; just type it in and see which call letters on the list have black letters (no link to the station). I did the first few markets:
Commercial Stations With No Websites (at least ones that Radio-Locator recognizes):
1. New York: FM - (none); AM - WSNR/620 Jersey City - Format: Ethnic, WZRC/1480 New York, NY - Format: Asian, WWRU/1660 Jerssey City - Format: Spanish.
2. Los Angeles: FM - KYRA/92.7 Thousand Oaks - Format: Unknown, KLJR/96.7 Santa Paula - Format: Spanish, KBUE/105.5 - Format: Spanish, KALI/106.3 Santa Ana - Format: Asian; AM - XESPN/800 Tijuana - Format: Spanish, XEGM&XEK-1/950 Tijuana - Format: Spanish, KWKU/1220 Pomona - Format: Spanish, KKZZ/1400 Santa Paula - Format: Spanish, KAHZ/1600 Pomona - Format: Asian, XEUT/1650 Tijuana - Format: Spanish.
3. Chicago: FM - (none); AM - WJOB/1230 Hammond, IN - Format: Talk, WEEF/1430 Deerfield - Format: Ethnic.
4. San Francisco: FM - (none); AM - KTOB/1490 Petaluma - Format: Regional Mexican, KSFN/1510 Piedmont - Format: Asian, KFSG/1690 Roseville - Format: Spanish.
5. Dallas-Ft. Worth (I typed "Irving, TX".): FM - KNOR/93.7 Krum - Format: Regional Mexican; AM - KFJZ/870 Ft. Worth - Format: Asian, KFCD/990 Farmersville - Format: Spanish, KHFX/1140 Cleburne - Format: Spanish, KFXR/1190 Dallas - Format: Country, KFLC/1270 Ft. Worth - Format: Spanish, KMNY/1360 Hurst - Format: Spanish, KGVL/1400 Greenville - Format: Oldies, KJIM/1500 Sherman - Format: Nostalgia, KZMP/1540 University Park - Format: Spanish, KRVA/1600 Cockrell Hill - Format: Asian.
6. Houston: FM - (none); AM - KJOZ/880 Conroe - Format: Spanish, KQUE/980 Rosenburg-Richmond - Format: Spanish, KULF/1090 Bellville - Format: Spanish, KYOK/1140 Conroe - Format: Gospel Music, KRCM/1380 Shenandoah - Format: Spanish, KSHJ/1430 Houston - Unknown, KYND/1520 Cypress - Format: Asian, KGBC/1540 Galveston - Format: Asian
7. Washington-Baltimore (I typed "Laurel, MD".): FM - (none); AM - WDMV/700 Walkersville, MD - Format: Spanish, WWFD/820 Frederick, MD - Format: Variety, WCRW/1190 Leesburg, VA - Format: Asian, WYCB/1340 Washington - Format: Gospel Music, WFBR/1590 Glen Burnie, MD - Format: Rhythmic Oldies, WLXE/1600 Rockville, MD - Format: Spanish.
OK. My time on Radio-Locator expired for the day. Anybody want to complete the top 10 by providing info for Philly, Atlanta and Boston?
Seems like two major trends are in work here. Most stations with no websites (1) have COL's in suburbs, and (2) are foreign language (even when you take out the Tijuana stations in LA). I guess the Spanish and Asian stations don't see a big need for websites at this time, but I'm sure someone else could enlighten us more on this topic.