mp3 bloggers (and critics) - artist response?

Question to people out there with mp3 blogs - do you ever get much postive artist response to you posting their tracks? (and this goes for critics who give +ve reviews also). If so, who?

I have to say, I love this happening. I'm frequently dubious about the whole enterprise of mp3 blogging, but the two times that this has happened to me (Justus Kohncke and James Dean Brown (from Narcotic Syntax)), has given me a huge glow. To have somebody whose music you love thank you for appreciating it. Damn, that's nice. It's like when a DJ acknowledges your dancing or something...