Science

Fun and Easy Science experiments
Steve Spangler Science

Philosophy

Some good gems for all you Atillas and Witchdoctors out there.
Ayn Rand Interviews and Panels

General

AOL has a nice site with lots of well organized free videos
AOL Video

Everyone knows this one
You Tube

You tube look alike but also lots of content
Meta-Cafe

Internet TV 1
Joost

Internet TV 2
Brightcove

Internet TV 3
FORA - The world is thinking

Comedy

The Rick Mercer Report

This Hour has 22 minutes

Educational

Loads of free material, my personal favorite educational site
The Annenburg Learner

The greatest modern economist - listen and learn
Milton Friedman Idea Channel

Nova - great science site
PBS - NOVA

Religious discussions
Slate - the meaning of life

Debate on current issues
NPR - intelligence squared

Religion and Science
Beyond Belief

MIT Lectures and Presentations
MIT World


Please let me know through commenting / email of other great video and audio links!!