I found this page with links to most of the major health insurance plans.
Source: http://www.ahip.org/content/default.aspx?bc=31|42|55
Health Decisions.Org also has some helpful information and the page is simple enough to allow you to drill down to find much of the information you may be looking for. I have found this page to point me in the right direction in many instances, even if the resources are not contained at the site.