Just wanted to note that since I discovered WPMUDev.org
I have been like a kid in a candy store. Things that I have dreamed of doing for many years suddenly became possible because of the themes and plugins found here. This is like a college education for anyone working with sites using wordpress. My business has jumped light years ahead of anything that would have been possible before. Yes, I struggle to learn and understand some of the plugins etc but that is the point! I am learning new things, and able to achieve new goals because of everyone here. Thanks so much to all.