Visual Studio 2005 Express Edition products have a blog of their own
Recently, Microsoft teams seem to be establishing blogs for products, ideas and whatever. That's cool (for now). In this case, the folks in charge of the "Express Editions" I wrote about on Sunday established one at http://blogs.msdn.com/express/, allowing to provide direct feedback to them.
Do use these ways of direct interaction with the product teams now - if you have something interesting, useful or charming to tell them, that is. Once this kind of stuff gets public attention (and that usually won't take too long), everybody will simply need to pull (or leave in place and ignore) those interaction channels due to abuse and inacceptable signal-to-noise ratio. So do take your chances early enough.