Doesn't it seem like more and more kids are being diagnosed with ADHD? SOme think this is because kids are being raised with more permissiveness and therefore get out of control, and parents will do anything to drug them to the point that they're manageable. Some think doctors are just better at picking up the diagnosis. Many, including me, think ADHD kids are more common because early in our history, the concentration of immigrants with ADHD was much higher than the general population of their countries of origin because of tehir sense of adventure, risk taking, etc--all traits of an ADHD mind.
I, like others, also feel that ADHD is not a disorder, it's a gift--a different cognitive style. In fact, I think it's a more highly evolved way of thinking. Since evolution works the way it does, this may explain why we're seing more and more of it. In a nutshell, these kids are picture thinkers, not word thinkers. You can think in pictures several thousand times faster than you can in words. And their thinking evolves in all directions in a three dimentional way rather than sequentially word by word by word. They use thier right brain or even both halves while the other kids use their left brain. These kids are called "visual spatial learners" while the others are called "auditory sequential." Unfortunately, schools are geared to teach in an auditory sequential mannerand so the ADHD kids get distracted, impulsive, etc.
For disciplining ADHD kids, I like Dr. Thomas Phelan's "1-2-3 Magic." It's simple and easy to apply consistently. Also, on this site under Parent Connection, Parenting Tips, you can to get a couple of free articles: one on rethinking discipline, one on how to be a calm parent and one on achieving family harmony. They all have great discipline techniques that will help prevent what usually happens to ADHD kids: they receive parenting that is too controlling, strict, and oppressive, turning them into rebellious and defiant teens that are perpetually angry and get into trouble at school, at home and with the law.
I would also buy some books to understand the way your ADHD child think. Oh, how I wish I had done this earlier with my own kids.) The books are: The Gift of Dyslexia by Ron Davis (Even though they might not be dyslexic, this book explains the connection of ADHD with picture thinking.) ALso, get "Upside Down Brilliance: The Visual Spatial Learner," by Silverman,and "Teaching for the Two Sided Mind" by Linda Verlee Williams, and "How Peole Learn: Brain, Mind, Experience and School." At least start with the first two. They might have it in the school library or your neighborhood library. (See if you can get a copy of my book too--"Raising Children Who Think for Themselves."
Let your children know that what they have is special and that most teachers don't have these special types of brains and don't know how to teach kids who do. Medication is only for the purpose of helping your children accommodate for what the schools lack.