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WikiPedia: Copyleft http://www.eyemagazine.com/opinion.php?id=117&oid=... http://www.linuxtoday.com/developer/2006082902126O... http://www.mehglobal.com/nix http://www.microsoft.com/presspass/exec/craig/05-0... http://seattletimes.nwsource.com/html/businesstech... http://www.onlamp.com/pub/a/onlamp/2005/06/30/esr_... http://www.oreilly.com/openbook/freedom http://www.oreilly.com/openbook/freedom/ch07.html http://www.oreillynet.com/pub/a/policy/2001/12/12/... http://psg.com/lists/namedroppers/namedroppers.200...