The best way to contact me is by email. I usually try to respond withing one business day. If you are a student in one of the courses I teach, please include the course code in the subject line.
Email: fergus.horrobin (at) mail.utoronto.ca
You can also come see me in my office. I split my time between the St. George Campus and the UTSC Campus. Usually I am at St. George on Monday, Wednesday and Friday and UTSC on Tuesday and Thursday.
If you want to confirm I am there, feel free to send me an email. My offices are:
MP 1202C (12th floor of McLennan Physical Laboratories)
SW504A (In the Physics and Astrophysics Department on the 5th floor of the Science Wing)
You can also follow we on Twitter to keep up to date with my work: