An amazing Winnipeg organization devoted to saving Elm trees in danger!
http://www.savetheelms.mb.ca/index.htm
The University of Guelph Arboretum. Home to amazing gardens, specimens, staff, volunteers and special projects including a rare woody plant gene bank of Carolinian species and the infamous Elm Recovery Project.
http://www.uoguelph.ca/arboretum/index.htm
