Vienna
http://www.vienna-rss.org/vienna2.php
"Vienna is a freeware, open source RSS/Atom newsreader for the Mac OS X operating system. It provides features comparable to commercial newsreaders, but both it and the source code are freely available for download."
Tales of Coding: Vienna + PHP (source code) + iUI
http://www.frozen-o.com/blog/2008/02/vienna-php-source-code-iui.html
Quick & dirty hack to expose the SQLite database maintained by the Vienna desktop news reader as a web-based feed reader.
Vienna
http://www.opencommunity.co.uk/vienna2.php
"Vienna is a freeware, open source RSS/Atom newsreader for the Mac OS X operating system."