Go ahead, click on the link and get started! And don't worry - it can take a few months before you get enough in your Squidoo account for a payout, so I won't be holding my breath. It's better to make lenses about stuff you are interested in and make it the best lens you can without being concerned about how much money you're going to make.
I probably won't add that box to all of my lenses, but it's on the Celtic Music: Lenses and my own lens about what I'm up to on Squidoo.
Following another of Tony's links led me to Qassia, a free site that helps with lens promotion. It's free, so I figure I've got nothing to lose and it might turn into a little bit of money. It's in beta, so you need a referral to join. I joined through Tony's page. If you're interested in joining, click on the logo to go to my Qassia page.
I have no idea whether Qassia will be a big thing or not once it's out of beta, but it seems worth a shot since it's free and doesn't take long to sign up.