During the past decade, the massive worldwide conversion of learning content from print and other older media on to digital networks has created gatekeepers who limit access to their digital content or require online users to pay for it. A variety of gatekeepers have made a third choice: |
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American Museum of Natural History July 1, 2006 2 |
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Creative behind a keyboard August 17, 2006 5 |
Scanning lifts some sales October 25, 2006 6 |
Metropolitan Museum of Art January 11, 2003 7 |
The Home of Thomas Jefferson October 28, 2006 8 |
WEB FOCUS almost free October 30, 2006 9 |
Bats at Halloween and 70 open science videos October 31, 2006 10 |
Preserving ephemeral treasurers into the developing digital age August 17, 2006 11 |
WebMD October 24, 2006 12 |
NASA October 6, 2006 13 |
Professor Douglas Linder October 18, 2006 14 |
Purina Pet Food - August 17, 2006 15 |
How Stuff Works October 26, 2006 16 |
Erich Jarvis August 17, 2006 17 |
Free resource from Wolfram Research August 17, 2006 18 |
King of The Hashemite Kingdom of Jordan October 18, 2006 19 |
U.S. Geological Survey August 17, 2006 20 |
An open education resource in the long tail December, 2006 21 |
Turning the Pages November 2, 2006 22 |
Wisconsin Historical Society August 17, 2006 23 |
University of Pittsburgh Electronic Texts November 28, 2006 24 |
Creative Commons best selling application book February 10, 2007 25 |