Dale Gaudier was the guest speaker last Wednesday, and gave a presentation on Amateur Radio, often referred to as "Ham Radio".  Dale has been past president of the Hill Country Amateur Radio Club, and developed an interest in the field in his early teens. 
Ham Radio is an effective way of communicating with others over the air waves. While hams may use the internet or a repeater system, they do not have to do so. In fact, one of the biggest advantages is that ham radio operators can talk directly with others without any outside infrastructure. This becomes really important during a natural or man made disaster when typical communication systems fail.
Amateur Radio enthusiasts do not use it for business. It is purely a hobby with a purpose. Hams practice efficient communication, and and expand their knowledge of geography, match and electronics while having fun doing it.