Classic texts: Journals: Ellingwood 1909.
Henriette's herbal blog: I made rose petal vinegar about a month ago.
Archives: Best of the Herbal Forums: 01.2000.
Archives: Best of the Herbal Forums: 01.1996.
Archives: Best of the Herbal Forums: 12.1995.
Archives: Best of the Herbal Forums: 11.1995.
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.