I've always wondered whether blackjack's "Ian Anderson" chose his penname from the Tull icon. Anderson is one of the blackjack authors I have never met, and indeed, know virtually nothing about. I'm sure he likes it that way.
I'm a huge Jethro Tull fan. I own at least 20 of their albums on CD, including every single release until the early 90s albums when I lost interest somewhat.
Think I'll go put on one now!