OK so back in time before the Penguin update Google didn't punish people for not mixing up their anchor text. So people didn't list to the "smart ones" (That doesn't include me btw!) who said add "click here" and "check out this site" as anchor text so you could build natural looking back links.

Boy do people wish they listened now! :p

Yes, Google likes diverse back links to your site but what your need is to provide RELEVANT diverse back...