I found a website that discusses what songs are actually about (what is their meaning?).  This nice thing is that you can search for songs or artists and find out what songs your kids are listening to actually mean.  I have very young children so it is nice to know what I should and maybe should not be allowing them to sing along with.

People can write their own meanings though so some can be off base.  Nevertheless, this is a good tool to help you understand lyrics.

Lyrics Meanings