I think the best information about small stakes games is in one of the books you'd least expect it. Championship Pot Lmiit and No Limit Hold 'Em by Cloutier and McEvoy. Its a tourney book, but I think it applies to small stakes ring games more than any book written specifically for that topic.

The section on NL is priceless, its a book about tournament strategy but the strategy he expresses for the majority of the tournament is very tight and very aggressive. The average tourney strategy is that you don't want to be out there gambling with the dead money retards when you don't have to, and when you do have a hand you come on strong and let them pay you off. Since most small stakes games have a player base which is identical to early tourneys, playing A2os UTG, this strategy has by far been the most profitable for me.