After googling, and trying to find this on both the GSN site and their forums, I don't see it. Does anybody have a list of stations that are carrying it?

To the best of my knowledge, currently three stations. From Wikipedia (which was originally authored by me, anyway):

A two-hour version of The Best of GSN Radio is aired on Sundays on WNYM in the New York metropolitan area from 12 p.m. - 2 p.m. Eastern and on CKTP in Fredericton, New Brunswick from 2 p.m. - 4 p.m. Atlantic. A one-hour version airs on KMVN in Los Angeles from 6 a.m. - 7 a.m. Pacific. WNYM and KMVN began airing GSN Radio in November 2008, while CKTP began broadcasting the program in February 2009.

CKTP also airs the last hour of GSN Radio live weekdays from 3 p.m. - 4 p.m. Atlantic.

You originally authored Wikipedia? Did you tell Jimbo he's bitin' your style? ;)

Who knew? Not like you can get WNYM very good anyway...

Further research shows that Best of airs on KXAM in Scottsdale, Arizona from 6 p.m. - 8 p.m. Mountain.

Only on Sunday, after looking at their website.

Although it does have a (tenuous, admittedly) connection to game shows beyond GSN Radio...during its Top 40 days as WWDJ, it inspired the creation of the legendary parody "Nine," featuring the voice of one Mr. Randy West.