For more information on Texas legal research, see the following research guides
Texas Constitution and Statutes A searchable database of Texas' Constitution and Statutes
Texas Legislature Online Information from Texas State House and Senate
Guide to Texas Legislative Information explains the Texas legislative process and contains information on how to find various types of legislative documents.
Southerm Methodist University School of Law has a research guide on Texas legislative history.
Texas Fact Book, published every two years by the Legislative Budget Board of the Texas Legislature, contains contact information for legislators and state agencies. It also includes statistics on population, state spending, and exports.
Texas Courts Online has many Texas legal documents available to the public such as:
Supreme Court of Texas dockets and opinions
Texas Courts of Appeals dockets and opinions
Texas Court of Criminal Appeals dockets and opinions
Texas Ethics Commission's website contains Ethics Advisory Opinions since 1992.
Texas Legal Research by 
Specialized Topics in Texas Legal Research by Voices for the Defense
The Texas Criminal Defense Lawyers Association’s monthly publication, Voice for the Defense, is available at http://www.voiceforthedefenseonline.com/
The Handbook of Texas is a multidisciplinary encyclopedia of Texas history, geography, and culture.
