Free Online Education Who is Who | - aiqus
www.khanacademy.org
www.knowlabs.com
AI-class
www.udacity.com
New venture of Prof. Thrun
www.coursera.org
Coursera is the organization behind the new (spring 2012) courses from Stanford (et al).
other *-classes
www.class-central.com
Class central is unaffiliated with Stanford, just set up as a resource; similarly to aiqus.
www.mitx.mit.edu
www.aiqus.com
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