I feel it is a bit of stretch to compare a product user to a blog reader. Having users who love your product will a) point out things that need fixing, b) give lots of great feedback. A product is something they have to use (you hope), its solving a problem. I don't feel that way about a blog.

I suppose a great reader will also provide feedback which is what you are asking about. Sorry no ideas here.

I have some users who love my software, but I rarely hear from them because the software just works. But then again my product is rather boring and not fun to talk about. I got my users by having software that solves their problem and I provide top notch customer support.