[1] HTML5 Revision Tracker ( 版) http://html5.org/tools/web-apps-tracker?from=4859&to=4860
[2] HTML5 Revision Tracker ( 版) http://html5.org/tools/web-apps-tracker?from=4860&to=4861
[3] Official Google Webmaster Central Blog: Google does not use the keywords meta tag in web ranking ( ( 版)) http://googlewebmastercentral.blogspot.com/2009/09/google-does-not-use-keywords-meta-tag.html
[4] Official Google Webmaster Central Blog: Google does not use the keywords meta tag in web ranking ( ( 版)) http://googlewebmastercentral.blogspot.jp/2009/09/google-does-not-use-keywords-meta-tag.html
<keywords>Slokas Tamil, Sanskrit, Sri Vaishnavava Slokas, Ramanuja</keywords> <link hxburned rel="fontdef" src="http://www.srivaishnava.org/adhawin.pfr">
Each <keyword> element renders its text into the <meta> keywords in
the document's header, separated by commas.
<meta name="keywords" content="html,css,rfc">