RiverLayout - a simple and flexible Java Layout Manager

RiverLayout is inspired by the way html formats text. RiverLayout is similar to FlowLayout in the sense that the UI components flow, usually from left to right, as they are added to a container, but control strings like "br", "tab" and "p" can be used to better adjust the location. The "tab" string for instance greatly simplifies the construction of forms. RiverLayout is LGPL licenced (open source)

IM Client for Mac OS X

Adium X is a multiple protocol instant messaging client. It now utilizes libgaim (the core part of gaim) to connect to multiple protocols, and is also based on a new plugin architecture. Partial address book integration, cool looking tabs, multiple protocols for instant messaging, and a compact contact list are some of the many features of the new Adium X. Adium supports AIM, ICQ, MSN, Yahoo!, Rendezvous, Yahoo! Japan, Gadu-Gadu, Jabber, Napster, Lotus Sametime (via the Meanwhile plugin), and Novell GroupWise.

Fire is a free Instant Messaging client for Mac OS X. It supports the seven most popular Instant Messaging services: AIM, ICQ, irc, Jabber, MSN, Yahoo! Messenger, Apple Rendezvous

JavaScript Toolbox

This is a collection of Javascript source files, examples, and concepts.

K3b

K3b is a feature-rich and easy to handle CD burning linux application.

TinkerTool for Mac OS X

TinkerTool is an application that gives you access to additional preference settings Apple has built into Mac OS X. This allows to activate hidden features in the operating system and in some of the applications delivered with the system.

The tool makes sure that preference changes can only affect the current user. You don't need administrative privileges to use the tool. With this design, it is no problem to use TinkerTool in professional networks where users have restricted permissions. The program will never change any component of the operating system, so the integrity of your system is not put at risk, and there will be no negative effect on system updates.

All preference settings changed by TinkerTool can be reset to Apple's defaults, or to the state that existed before using the tool. No dangerous background processes are used for TinkerTool's operation.

HTML Editor

Nvu is the new Web editing environment based on the Mozilla platform and its Gecko layout engine. Nvu binary test builds are available for Linux, Windows, Mac OS X and FreeBSD.

File Upload with Java

The Jakarta Commons FileUpload package makes it easy to add robust, high-performance, file upload capability to your servlets and web applications.

FileUpload parses HTTP requests which conform to RFC 1867 , "Form-based File Upload in HTML". That is, if an HTTP request is submitted using the POST method, and with a content type of "multipart/form-data", then FileUpload can parse that request, and make the results available in a manner easily used by the caller.

IBM Toolkit for MPEG-4 v1.2 Released

IBM Toolkit for MPEG-4 consists of a set of Java classes and APIs with five sample applications : three cross-platform playback applications and two tools for generating MPEG-4 content for use with MPEG-4-compliant devices. Version 1.2 now has improved user interaction and texturing support. New Swing and SWT player SDK samples. Improved Java 1.1 to 1.5 scalability. New MPEG-4 content samples, many created with XMT-A and various other enhancements.

Firewall for Linux

Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators.

Fisheye Menus

These fisheye menus are quite interesting.
Flash
Java