Two things have always been missing for someone who wanted read the Texas law on the internet. First, the statutes were not readily available. Second, Texas civil cases were not posted to the web. Two sites may cure those problems. A very large part of practicing law is trying to find which statutes or cases apply to a set of facts.
Legal research is really more of an art than a science.
If you ever have the time, you should take a trip to the law library on the fifth floor of the Bexar County Courthouse or the Law Library at St. Mary s University. Something will occur to you very quickly during your visit. There is no overall organization to law books. Even within individual publications, the indexes are atrocious. You will understand why Legal Research is a separate course for first year law students.