The good folks at 3 Geeks and a Law have reviewed the low-cost alternatives to "Wexisberg" -- i.e., Westlaw, Lexis, and Bloomberg Law. They ran various state law searches through Loislaw, Google Scholar, Fastcase, and Casemaker.
The best of these sites for researching state law?
Casemaker. Click here to find out why.
(h/t Legal Writing Prof Blog)