I've dabbled in the Albin Countergambit from time to time, with varying results.
Recently I finished a nice miniature (Game 4508226
) after white played an early kingside fianchetto, which has influenced me to believe that 5. g3 is reasonable, but not necessarily strongest.
Also, I'm currently engaged in a game (Game 4655555
) with Ceders, a strong player who has played the Albin Countergambit quite often, in addition to the Chigorin's Defence. Our game is interesting, but I found out the hard way that my gambit was completely unsound. Game in progress
And finally, I thought I'd throw a nice website or two out there, too:
This short little article only offers games where white plays a kingside fianchetto reccommends meeting that with moves like Bf5, Qd2, Bh3, O-O-O, and h7-h5-h4 with a kinside attack.
This article is massive, including enough lines to blow your eyes. Definitely a nice article for a true Albin Countergambiteer.
And finally, this could be considered as a list of additional Albin Countergambit resources, on the net and elsewhere.