Labels

Does anybody pay attention or even care about the "labels" that accompany most of the blog posts? If done well, they allow you, the reader, to see every post I've made that is related to a given topic (for example, every blog post where I post links to free music, or every post with a video in it). I've been really bad and sporadic about them, but if people care about them or use them, then I'll take some time to go back to the beginning and try to label every one with a relevant label.