The Fastcase Public Library of Law was launched yesterday as "the most comprehensive free resource for legal research online." PLoL claims that it is the largest free law library in the world.  A cursory examination shows an easy to use interface with links to caselaw, statutes, and regulations.  You can look at federal law or choose your state from a dropdown menu.  We'll all have to spend some time trying it out to see if it's a resource we can enthusiastically recommend. 
There are also links to content you have to pay for - legal forms, for example, is one of the main tabs but you have to buy the forms after viewing them.  I'm not crazy about that - But most of the links are free.  Fastcase is a commercial legal research company that specializes in caselaw databases.  Offering free, well-organized legal information is probably a smart business decision too if it builds the name and reputation of your company.