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  Ubuntu

  Ubuntu is an open source software platform that runs everywhere from the smartphone, the tablet and the PC to the server and the cloud.
  http://www.ubuntu.com

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  AskUbuntu

  http://www.askubuntu.com

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  Ubuntu Forums

  http://www.ubuntuforums.org

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  UbuntuHandbook

  http://www.ubuntuhandbook.org

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  Ubuntu Geek

  http://www.ubuntugeek.com

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  UpUbuntu

  http://www.upubuntu.com

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  Linux and Ubuntu

  http://www.linuxandubuntu.com

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  Ubuntu Server Guide

  http://www.ubuntuserverguide.com

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  Ubuntu Portal

  http://www.ubuntuportal.com

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  Ubuntu guide

  http://www.ubuntuguide.org

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  Ubuntu Tweak

  http://www.ubuntu-tweak.com

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  Ubuntu Linux

  http://www.ubuntulinux.org

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  OMG! Ubuntu!

  Ubuntu Linux News, Apps and Reviews
  http://www.omgubuntu.co.uk

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  Ubuntu.pl

  http://www.ubuntu.pl

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  Ubuntu.hu

  http://www.ubuntu.hu