Pinboard (sweeney) https://pinboard.in/u:sweeney/public/ recent bookmarks from sweeney Chris Shiflett: A rev="canonical" HTTP Header 2009-04-12T21:27:59+00:00 http://shiflett.org/blog/2009/apr/a-rev-canonical-http-header sweeneyhttp canonical head https://pinboard.in/u:sweeney/b:1eb028398dd0/ rev=canonical: url shortening that doesn't hurt the internet 2009-04-07T13:55:14+00:00 http://revcanonical.appspot.com/ sweeneyweb html urls canonical https://pinboard.in/u:sweeney/b:d2876c7d7806/ Official Google Webmaster Central Blog: Specify your canonical 2009-02-15T20:23:00+00:00 http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html sweeneygoogle development url canonical https://pinboard.in/u:sweeney/b:d207eb8eeb07/