• BloGTK PPA
  The official PPA for BloGTK, which has a much newer version than the one in the Ubuntu repos.
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• PPA for Firefox with Font Fix
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• Simple Scan PPA : Robert Ancell
  New scanner utility for Ubuntu, to replace XScan in Lucid/10.04. Doesn't appear to have a proper homepage, though?
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ppas from all users