Here are some written references that may help you on your way:

• Bicycling the Houston Area by Bill Pellerin & Ralph Neidhardt -a collection of 30 rides (with Maps) in and around Houston
  * this title is available at local bike shops
  
• Urban Biker's Trips and Tricks by Dave Glowacz
  * view/buy at Powell's
• Ashpalt Nation by Jane Holtz Kay
  * view/buy at Powell's
• Effective Cycling by John Forester
  * view/buy at Powell's
• Encycleopedia: The International Guide to Alternatives in Cycling
  * view/buy at Powell's
• The Noblest Invention with foreword by Lance Armstrong, this is a pictorial tribute to cycling history.
  * view/buy at Powell's