The Council for Affordable Health Insurance has just issued a short two-page paper entitled, "Should the Government Force You To Buy Health Insurance?"
It includes some useful economic data as well as some pretty damning criticisms of the Massachusetts mandatory insurance plan.
The CAHI is a little more sympathetic to the Swiss system of mandatory insurance that I would be. The Swiss system still violates individuals' right to contract, although the subsequent bad economic effects have not (yet) hit Switzerland as hard as Massachusetts.
But overall, the CAHI piece is informative and well worth reading!