Unlike some of the other commenters, I like the vagueness a bit. I would have probably left you my email address until I found out it was a social network. In

Unlike some of the other commenters, I like the vagueness a bit. I would have probably left you my email address until I found out it was a social network. In other words, if you're still not sure exactly what you're going to end up being and are open to the idea of changing your model as you go, I wouldn't limit yourselves/shrink your userbase before you even have a site. I'd also cut this sentence. It's redundant and adds no value: "Each listening to the same band, you were drawn together over music?"