I prefer Zymurgy over BYO. Both are very good though.
If you are not a member of the AHS, you should join today. $38 a year is a fantastic deal for the magazine, pub discounts and supporting a great organization that aims to keep politicians from meddling with our hobby. The pub discounts alone usually make up for the cost of membership.
Welcome to the Brewers Association
As far as general-interest beer magazines go, I haven't found any that seemed worth the purchase price.
The Fiesty(sic) Goat Brewery est. 2007 & Clusterfuggle Experimental Ales est. 2009
Planned: sLambic II, Flanders Red II
Primary: Fat Man Porter, Orange Blossom Mead, sLambic I
Secondary: Flanders Red I
Kegged: 3 different ciders, Janet's Brown, Barrel-aged Stout, Hallertau Blanc Pale Ale
Bottled: Flanders Red I