BOS--for procrastination and to quash boredom in the holidays
Facebook--for networking (Hi5, Ringo and all that has died out--Facebook is the new thing)
Wikipedia--reading up on random topics
Google-- the search engine
whereis.com--maps
smh.com.au--reading the news, especially since I hardly eat dinner at the time news airs anymore
myuni.usyd.edu.au--for uni work, e-mail, etc
library.usyd.edu.au--read up on articles, find out which books to borrow, etc.
hotmail--personal e-mail account, obviously
um, I think that's about it...