Thunderbird is a total redesign of the Mozilla mail component to produce a cross-platform, stand-alone mail application using the XUL user interface language. It has many new features, among them the ability to customize your toolbars the way you want them. a new look and feel with a large number of downloadable themes which alter the appearance of the client, and the ability to add UI extensions.
RSSOwl is a wise SWT-based news aggregator. Its search feature lets you hunt down the best RSS/RDF/Atom feeds on the Web, and then organize and share your feeds with agility. Other features include an integrated browser; AmphetaRate, for acquiring news tailored to your tastes; full-text searching through headlines and descriptions; export feed summaries to PDF, RTF, and HTML; the ability to import or export OPML; the ability to exchange collections with others by importing or exporting subscriptions; the ability to import or export user data to and from other machines; automatic newsfeed upating; and much more.
b2evolution, is a multi-lingual, multi-user, multi-blog engine. It was developed to provide a free, feature rich, extensible, and easy-to-install solution for efficient Web publishing of information ranging from professional news feeds to personal weblogs. b2evo can easily be installed on almost any LAMP (Linux, Apache, MySQL, PHP) host in a matter of minutes.
Mixxx is software for DJs that provides everything needed to create live mixes. It allows you to beatmatch songs and crossfade them together, like you would with turntables and a mixer. It runs without any extra hardware, and offers a wide range of advanced features including comprehensive MIDI controller and vinyl control support. To obtain the lowest latency and highest responsiveness, it uses hardware video acceleration and takes advantage of multi-core CPUs.
Photo Organizer is a Web-based multi-user photo management tool that was designed for professional photographers. It offers a searchable photo database that supports photo version control, a datebook with client management, photo submission history, EXIF, IPTC, XML, and XMP, user quotas, and printing labels and color brochures. It uses ImageMagick and DCRAW to handle over a hundred image formats, and relies on PostgreSQL as its database backend.