Here's some more interesting links that I've come across recently - there's a variety of uses for these:
Graph Paper Generator: you never know when you might need a sheet of graph paper - and when you do you might not need an entire pack - just one sheet! This site offers a variety of sizes.
Teleprompter: you might find yourself in a situation where you need to read something that you can' t memorize and find this a useful tool. I tried it with firefox and it seemed to work although the programmers developed it for internet explorer.
Public Domain or Copyright holder's permission: download books for free! ? Some restrictions may apply, please see the really small print on the website. Not recommented for nursering women, women who may become pregnant, women in general, children, men, or doggies.