1. I found a great link to Mathematical Jokes on Wikipedia. There are many on the page, but here's an excerpt:
One such example is calculator spelling, words and phrases formed by entering a number and turning the calculator upside down. Due to their crudeness and relative simplicity (requiring only basic calculator skills to achieve), they are usually spread by schoolchildren. Often the words are accompanied by stories involving numbers that lead to the "final solution".--sorry about that one--
- Christina Aguilera's breasts weigh 69 pounds (enter 69 into calculator), which is too, too, too much (enter 222, making 69222). So she went to 5th Street (enter 5, making 692225) to see her #1 doctor (enter 1, making 6922251) Dr. X (push the multiply button). After 8 surgeries (enter 8 then equals, giving 55378008) she was (turn the calculator upside down to reveal the calculator word) BOOBLESS.
2. If you are tech inclined or even if you're not, this is a great website to bookmark as your homepage: http://popurls.com/. On the page are actually numerous links to breaking news of the day from various websites. The news varies from tech, global/world, entertainment and anything really collected from prestigious websites like googlenews, yahoonews, del.icio.us, digg and many more. Apart from news, what I really like is that the page also has a webcomic updated daily, interesting pictures on Flickr as well as videos of the day from youtube (among others). It really is an excellent one-stop page to all your favourite pages/news on the web. Do give it a go.
3. In my opinion the best, it's called Webaroo. Webaroo is a free 7mb utility you could download for free from http://www.webaroo.com/. What it could do is SAVE WEBSITES (including links of several depths) onto your computer for viewing offline. Not only that, the saved webpages are then searchable AND sync-able to your laptop, smartphone or PDA.
This would be an excellent solution for me when I'm staying away from home during oncalls (without internet access) or when I'm, for example, stuck in a caravan by the beach in Scotland. Cool eh?