Regular mail (why you'd want to contact me this way, I have no idea):

David Warde-Farley
Department of Computer Science
University of Toronto
10 King's College Rd.
Toronto, Ontario, Canada
M5S 3G4

Office Location/Telephone:

Donnelly Centre for Cellular and Biomolecular Research (map)
160 College Street, 6th Floor, Rm. 640
(416) 978-8579

Electronic mail:

My three initials (no spaces or dashes) at cs dot toronto dot edu

I very much prefer plain text messages in this medium, with the exception of file attachments when absolutely necessary.