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• http://buffr.org/
• http://copyachi.tumblr.com/
• http://del.icio.us/rtk2106
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• http://ffffound.com/home/koyachi/found/
• http://flickr.com/photos/koyachi
• http://github.com/koyachi
• http://gomimemo.g.hatena.ne.jp/koyachi/
• http://mediamarker.net/u/koyachi/
• http://pipes.yahoo.com/koyachi
• http://pipes.yahoo.com/pipes/person.info?eyuid=pDtXEhQno2z.dY3ZCCeMaQ--
• http://search.cpan.org/~koyachi/
• http://twitter.com/koyachi
• http://userscripts.org/users/28675
• http://wedata.net/users/4
• http://www.last.fm/user/rtk2106
• http://youtube.com/profile?user=rtk2106

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