Link roundup

I find this stuff so you don’t have to:

• MOOC provider EdX goes open source – with an interesting choice of licence
• Making better choices for the technology we use
• Remember Ning? Once-buzzy social network has relaunched again as a publishing platform
• Why and how we publish digital content
• Wikis as flexible and powerful knowledge bases
• Ideas to tackle isolation in old age
• Unschooling and the Self-unemployed #unschool13
• Personal Knowledge Management
• Four Pillars of Successful Communities of Practice
• Global Impact Awards’ hunt for U.K.’s most innovative social entrepreneurs starts today
• ‘No life.’ Young people talking about poverty

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