I think I sent you an e-mail back then, but let me take this opportunity to heap a bunch of praise and gratitude upon you in front of God and everybody. I bought several books on BGP at the time and slogged through them, but it was intimidating and I had a lot of trouble putting the pieces together. Your tutorials were simple, straightforward and helped me an awful lot. And the other thing about the way you wrote them that I really appreciated was that you didn't make me feel inferior for not knowing WTF I was doing. Thanks Avi. From time to time, I think back on the challenges I had in my life/career and I'm grateful for the people who helped me. You're definitely on that list, sir.