JGraph is a free, mature, and robust Java diagramming library. It contains all the graph visualization, layout, and interaction functionality you might expect in a graph library, including multiple views, layering, zoom, drag and drop, undo, automatic expanding and collapsing, routing, and layouts. You can create workflow editors, BPMN, CAD tools, network diagrams, database visualization tools, and more. It is fully documented, including examples, and has an active support community.
Whisper IM is a secure IM client that provides end-to-end encryption over a XMPP/Jabber network. The encryption system (The Whisper Protocol) is designed for instant messaging, and is IM protocol and platform neutral. It supports all standard instant messaging features, such as messages, one to one chat, and online presence. The user interface is clean and easy to use. It also features multi-user chat (JEP45), context sensitive help, a service discovery tool (JEP30), and internationalization support.
NetClassifieds Free Edition is an online classifieds system based on NetClassifieds Standard Edition with all the same features and capabilities but a few limitations. It features ebay-style category selection and picture uploading with dynamic thumbnails when creating new listings, home page featured and category featured Listings, unlimited categories, a method for asking sellers a question, a Make an Offer feature, and more. The Listing Gallery (including "Gallery Featured" and the "Gallery Fee" option), image previews, and the bold listing, highlight listing, and slide show listing option are not included and only 250 active listings are possible.
2D/3D Stacked Horizontal Bar Graph for PHP provides a very easy way to embed dynamically generated stacked horizontal bar graphs and charts into PHP applications and HTML Web pages. The graphing software is very easy to use and it's perfectly possible to add professional quality real time graphing to Web pages and applications within minutes.
fakedbfs is a suite of tools and a library for cataloguing files. Anything that is a file can be catalogued along with metadata. The metadata is then searchable through various querying facilities. It runs entirely in userland and was inspired by BFS, which doesn't do content indexing, only metadata.
The Open Real-Time Ethernet (ORTE) is an implementation of the Real-Time Publish-Subscribe (RTPS) communication protocol. RTPS is a new application layer protocol targeted to real-time communication areas, and is built on the top of standard UDP stack. Since there are many TCP/IP stack implementations under many operating systems, and RTPS does not have any other special hardware or software requirements, it should be easily ported to many target platforms. Because it uses only UDP, it retains control of timing and reliability.