A list of informative/interesting/fun links worth checking out:
www.automate.org – Robotics Industries Association webpage
www.efunda.com – Plenty of engineering references
www.howstuffworks.com – the name says it all…
mathworld.wolfram.com – Very informative math website
www.mie.utoronto.ca – Mechanical & Industrial Engineering @ UofT
www.tourism-mauritius.mu – Paradise Island in the Indian Ocean