Boing Boing doesn't believe in linking policies. They're dangerous, have no basis in law, and they break the norms that make the Web possible. They're a wicked, stupid idea.
That said, if you believe in linking policies -- that is, if you believe that people who make websites should be able to control who links to those sites and how -- then have we got a policy for you:
No site with a linking policy (other than a policy such as this one, created to deride and undermine the idea of linking policies) may link to Boing Boing. Ever.