I've been checking out other blogs that do this, and I gotta say - I'm just left feeling like there is even more music I'm missing out on. I need more hours in the day, damn it.
I have a friend who runs culturebrats.com, a site I write for from time to time, and he does this 'song of the day' thing too. He told me he tries to do a different artist/band every single day, and has been doing this for the past 800+ days. Whoa man.
Time to come up with a system. =)