I'd recommend ADDitude for anyone who would like to find out more about ADHD/ADD. This is a great resource that really does cover all aspects of the condition - including an entire section on Women with ADHD.
Healthline is another great resource. Here, you can get more information about the Three Types of ADHD
Counselling Directory is a confidential service that encourages those in distress to seek help. The directory contains information on many different types of distress, as well as articles, news, and events. All counsellors have provided the site with qualifications and insurance cover or proof of membership with a professional body.
Graphics & Additional Sources
The Infographic below from special-education-degree.net is really great for a general overview of ADHD.
An Inside Look at ADHD from Brain Balance