1. Khan Academy

Salman Khan's http://www.khanacademy.org/ is incredible. Check out this introductory video and sign up on the site for free, intuitive lessons that will turn you into a black belt at maths.

2. Flickr

The internet's largest collection of photographs.

http://www.flickr.com/

3. Oxfam Unwrapped

http://www.oxfamunwrapped.com.au/

4. Google Apps

http://www.google.com/apps/intl/en-au/business/index.html

A highly functional, cloud-based alternative to Microsoft Office Suite.

5. Project Gutenberg

If you want more then head over to Project Gutenberg have a look at over 30,000 downloadable eBooks for FREE.

http://www.gutenberg.org/browse/scores/top

6. Vimeo

http://www.vimeo.com

Vimeo is one of the best resources on the web for high quality video content. Below is just one example of the many awesome things people are doing with video technology at the moment.

SprintCam v3 NAB 2009 showreel from David Coiffier on Vimeo.

7. Spotify

http://www.spotify.com

"Spotify is so good"

- Mark Zuckerberg, co-founder of Facebook

8. StumbleUpon

http://www.stumbleupon.com/

StumbleUpon is like flicking through the best channels on the internet as though with a remote control. Take three minutes to properly complete your preferences and you'll be blown away if you just add photography.

Most entertaining tool on the internet; it's the only plugin I install in my browser.

9. The Grilled Cheese Academy

Like Top Gun but with cheese sandwiches.

http://grilledcheeseacademy.com/

10. Prezi

Prezi

Prezi is a web-based tool for creating the kind of presentations everybody used to do in Powerpoint. Nobody in their right mind would return to Powerpoint after learning how simple it is to make astonishing presentations that make sense.

Here's an example presentation; hit the More button bottom right, go fullscreen and autoplay:

TEDxBKK Speaker Package on Prezi

Prezi's homepage where you can sign up for free and start making presentations instantly:

http://www.prezi.com/