- American Society of Botanical Artists
- Art Forum Australia Art
- Botanicart.com.au
- Botanical Art Society of Australia
- Holiday Sketching – Join Leonie Norton on one of her exciting and unique art tours, sketching with pen and watercolour
- Hunt Institute of Botanical Documentation
- Natural History Museum UK – Flinders Voyage 1802-2002
- Natural History with Leonie Norton – Informative site with information and Gallery. Learn to draw and paint any natural history subject through an External Course
- Society of Botanical Artists UK
- The Art of Botanical Illustration – (University of Delaware’s Special Collections)