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OPLIN 4Cast #133:, Free lectures, World Digital Library, URL shorteners

Posted in 4cast

1. – the online identity aggregator

2. These two tools aggregate 1000’s of free lectures from over a 100 universities across the country, including MIT, Yale, Harvard, Stanford, and many more.

3. Launched yesterday: “The World Digital Library (WDL) makes available on the Internet, free of charge and in multilingual format, significant primary materials from countries and cultures around the world.”

4. URL shortening services – pros, cons and links to some you can use