As a math professor, how can I help grad students find nonacademic jobs?

I am a math professor at a second-tier state university, and many of our Ph.D. students decide (rather sensibly, in my opinion) to avoid the academic job crunch and instead to seek positions in industry.

I would like to help them, but I am at a loss as to how -- I don't have much in the way of useful advice or contacts.

The local job market is not very good, so I'm interested in what I might be able to do to help students with a national search. Any suggestions?