With the easy availability and abundance of downloadable music and MP3 players, almost every teenager knows exactly how to find their favorite bands and songs online. Recent studies show that more than 50 percent of teens own their own iPod and even more search for music on iTunes. A world of influence is at their fingertips, so how and when should Christian parents monitor the music their children are listening to without creating undue conflict and argument? For author Todd Stocker, the day his son asked his preference between Van Halen and Def Leppard was the day he realized he and his...