http://www.newspeakdictionary.com/
To get to the actual dictionary, you have to click on the left hand side where it says, "1984-Newspeak," but I encourage you to look around the entire website. The entire site is interesting (in a slightly disturbing way), so you might want to have a look around.
Also, this weekend, just for fun, try to think about/keep track of how many times you encounter something from the world described in "1984" - something where "Big Brother" might be watching you or "Newspeak" (shortening the language) might be present. Just think about it... And what the heck -- throw your ideas/c on the blog... :)