Websites – any audience:

The Canadian ADHD Resource Alliance (CADDRA) – An independent, not-for-profit, resource organization. *please note – CADDRA does NOT have health professionals on staff to diagnose or answer questions*

Center for ADHD Awareness Canada (CADDAC) – Canadian charitable organization dedicated to improving the lives of those with ADHD through awareness, education and advocacy.
websites – links specific to teachers:

Understood – Empowering people who think and learn differently.

ADDitude Resources for Educators. In addition to this site the following articles provide a good introduction to Additude Magazine’s collection of resources for educators:
How Can We Help Inattentive Children?
ADHD Secrets My Teacher Should Know
Teaching Strategies for Students with ADHD: Ideas to Help Every Child Shine

CHADD – offers a Teacher Training Program crafted by teachers to provide other teachers with the strategies and tips to help their students with ADHD succeed.
In addition, CHADD’s National Resource Center on ADHD has produced a video series of Tips for Teachers – check out their comprehensive Educator Resource Overview Page
Helpful Websites for Healthcare professionals:

The Canadian ADHD Resource Alliance (CADDRA) – An independent, not-for-profit, resource organization. *please note – CADDRA does NOT have health professionals on staff to diagnose or answer questions*