Lexis posts a free, unannotated edition of the Tennessee Code. Internet links to Tennessee government agencies, statutes, regulations, cases, etc. are posted by FindLaw and WashLaw. Primary legal materials are also available from Lexis, Westlaw and Loislaw. Subscription services Versuslaw Fastcase have cases back to 1950; Google Scholar has cases back to 1950 for free. Supreme and appellate court cases are published in West's South Western Reporter.
To check on the status of a pending bill, pull up the Bill's page on the General Assembly website.
For a discussion of Tennessee law, see Tennessee Jurisprudence (available on Lexis) and/or Tennessee Practice (available on Westlaw).
For questions about Tennessee legal materials, copies and/or inter-library loan, try calling the Tennessee State Law Library (901-423-5849), the University of Tennessee Law Library (423-974-6571) and/or Vanderbilt University's law library (615-322-2568).