Official website
http://www.peazip.org

Support page
http://www.peazip.org/peazip-help.html

Issue tracker
http://code.google.com/p/peazip/issues/list

New releases RSS
http://feeds.feedburner.com/DownloadsForProjectPeazipOnGoogleCode

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Alternative downloads:

Repository on Google Code
http://code.google.com/p/peazip/

Torrent distribution 
http://www.mininova.org/user/gtani