I found these videos by the National Pest Control Association that explain the problem & how to determine if you have termites.
Magic Exterminating offers both conventional termite treatments and highly recommends the Sentricon Termite Colony Elimination System.
Sentricon is the only method proven to eliminate Termite Colonies. Sentricon is also green and won the Presidential Green Chemical Award. For more information view the videos and visit our website and learn about our Termite Treatment Methods.