Henriette's herbal blog: Menstrual calendar 2015-2018.
Henriette's herbal blog: 2011-2014.
Classic texts: Eli Jones' Definite Medication, 1911.
Henriette's herbal blog: Magnesium citrate, B6 and Zinc are better than Vitex in PMS.
Archives: Best of the Herbal Forums: 01.2000.
Archives: Best of the Herbal Forums: 06.1996.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.
Plant Healer Magazine: Very relevant to the practitioner.
http://www.henriettes-herb.com - Copyright 1995–2016 Henriette Kress.