More articles about the Zerg in StarCraft 2 have been made available, with more articles about their structures to come.
Check out the new articles here:
http://www.starcraft2guidance.com/zerg-structure-strategies/baneling-nest-tactics/
http://www.starcraft2guidance.com/zerg-unit-strategies/infested-terran-tactics/
http://www.starcraft2guidance.com/zerg-unit-strategies/changeling-tactics/
http://www.starcraft2guidance.com/zerg-unit-strategies/broodling-tactics/
