Don't know what this is about, either

You are probably greeted by this screen if you have a security-enabled browser:

It's not just this site. Any site that uses blogrolling.com to manage its site links also engenders the warning. I've used blogrolling for years and this is the first this warning has ever come up. Curiously, if you go to blogrolling's actual site, no warning appears.

I am completely confident that there is nothing on this site that will harm your computer.

Update: I deleted the blogrolling list and copied most links to a Blogger set.