I don't mean to be pedantic, but you need to be a bit more specific about what kind of valuable feedback you want. If you think along the lines of "if I had X i

I don't mean to be pedantic, but you need to be a bit more specific about what kind of valuable feedback you want. If you think along the lines of "if I had X information, I'd be able to do Y with my site." If you're looking for user comments, put in a clearly marked link to a feedback page. Make sure that you ask what the users would like to see (offer a few example suggestions next to the form). You could also use a javascript-based use tracker to see how users are using your site (I think there was a company that implemented this a while back, but you could probably make your own in a few hours). You can also use some web analytics packages or A/B testing to see what is actually being used on your site (i.e. what the users like about it). EDIT: isharan mentioned ClickTale in his post, which was the company I was thinking about with the UI tracking.