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Open Sources: Voices from the Open Source Revolution

• Wikipedia Open Sources: Voices from the Open Source Revolution
• Google books Open Sources:Voices from the Open Source Revolution editions
• O'Reilly Open Sources: Voices from the Open Source Revolution, read online
• PDF: found different versions here and there

Open Sources 2.0: The Continuing Evolution

• O'Reilly Open Sources 2.0: The Continuing Evolution
• archive.org read online
• PDF: here