Lonestar
UT Dallas announces a successful bid to host the NSCRO's Cowboy Cup Qualifier on March 23-24, 2013!
RugbyTexas
RugbyTexas' season starts very soon. Spring 2013 schedule is here.
RugbyTexas websites that I have found (if you have links not listed here, please post in comments!):
Plano Rugby
The Woodlands Youth Rugby
Alliance Rugby
St Pius X Panthers
Katy Rugby
Ted Hardy at RugbyAmerica.net posts the Bryant Plan of starting a high school rugby program. It's a few years dated and centered mostly around Indiana, but it still provides much wisdom and sage advice from one who traveled that hard road early.
ARC
Former Texas A&M player Hunter Leland (now playing for the Denver Barbarians) makes RugbyMag's Top 12 Inside Center's of 2012.