Every Page a Squeeze Page?

In a recent post here on WF I was advised to try to improve my list. Because my website serves as my company site, my sales site, and my list opt-in site, I don't want to limit my signup to a single squeeze page.

I have my signup "enticement" on the right-sidebar of every blog page that I have (my blog articles drive a large % of my site's traffic), but is there a "better" place to put the link? If it helps I use MailChimp.

My target is dentists, physicians, and healthcare providers who are interested in learning more about improving their office website (and are interested in social media, adwords, etc. I'm a dentist myself)

It's a HOT topic in my field and every journal out there has articles about design principles, social media, etc.

And to be clear, I'm not trying to teach dentists and doctors HOW TO code a website -- it's more along the lines of "make sure your phone # is clickable on an iPhone" type of thing.

My current signup text is:
Should I put it at the top of each blog post, under the title of the article?

Here's an example blog post.

Thanks.