Jonathan Safran Foer's Eating Animals is a triple marvel: the research is serious and far reaching, the writing clear, clever, accessible and in a few instances graphically ingenious, and the cause is genuinely important.
Intensive farming systems -- with crowded animals, ventilation systems, and huge collections of manure -- make industrial poultry and swine operations into breeding grounds for a host of perilous diseases.
Without getting into the gory details, industrially produced chickens lead a (how do I say this nicely?) less than charmed life. I outline your various options for how/where to get chicken you can feel good about.