Aggrevator is finally available (in beta). According to my LaptopWiki I started work on this in July 2003 because I wanted a web-application based aggregator to replace Flock. Since then I've played around with implementing the essential idea in technologies ranging from Python to Java. And I finally settled on a rich client application written in Java. It uses SWT (the same library as Eclipse) for the GUI and MySql for the database back-end.

There really ought to be a name for the process of searching for a license that is compatible with the licenses of all the libraries that you're using. I ended up going with GPL mainly because the MySql JDBC drivers use that license and all my other libraries are either LGPL, BSD or Apache.