I'd absolutely love to hear from you about what you like and dislike about this site, and how I can make it better. (And I can't tell you how nice it is to get a genuine "thank you" email from people who have visited this site, on occasion.)
I can't promise that I will respond to your email, but email me anyway. I do read every single email I get, and take your suggestions into account. I read every forum post, and every comment on a tutorial within a few hours after they're posted. So don't hesitate to let me know what's on your mind, or ask me questions about what's confusing you, or ask me how to do something in XNA.
I really do want to hear from you!
Oh, by the way, my name really is RB. (Well, technically, it is my initials, but that's what everyone who knows me calls me. Oh, and I don't typically put the dots. It's RB, not R.B.)
Based on the emails I get, I kind of think a lot of people don't know how to start their emails, since with other people's names, a lot of times people say "Hi Steve" or whatever, but for me, they seem to avoid that, and just say "Hi". I don't really care how you start your emails, but "RB" really is my name, not just a pseudonym or anything, so don't be afraid to say "Hi RB" if that's what you want to do.
Twitter: @rb_whitaker. While I've been on Twitter for quite a while, I don't use it all that much. I'm starting to use it more, so if you want to reach out to me through Twitter, there's a chance I might respond. (It might be worth a shot, right?)