I don't know much about Sport Balla's mission, but I DO like their collection of VIDEOS ON AAC, communication, and technology. Simple, professional and informal videos are instructive those just dipping their toes into the arena of augmentative communication ass well as the more seasoned peruse-r.
Hours of watching! Take a look for yourself.
...And if anyone can answer the riddle that lies in "Sports Balla = AAC" I will be forever grateful!
Click to link to their list of AAC videos.