As you may know, the University Library provides two subscription legal research databases (LexisNexis Academic and West’s Campus Research). There are also free legal research sites such as FindLaw; see the Library’s Law Resources web page for links.
A new free site, currently in beta, is The Public Library of Law. I haven’t played with it extensively, but it looks promising. Available there: federal and state court cases and rules, statutes and constitutions, regulations, and legal forms.