StackApplet is a GNOME panel applet that monitors your activity on any StackExchange site. StackApplet will notify you when your reputation changes on any of the sites or when someone posts a comment to you.

GNU Make is a utility which controls the generation of executables and other target files of a program from the program's source files. It determines automatically which pieces of a large program need to be (re)created, and issues the commands to (re)create them. Make can be used to organize any task in which targets (files) are to be automatically updated based on input files whenever the corresponding input is newer --- it is not limited to building computer programs. Indeed, Make is a general purpose dependency solver.

SubDownloader is a tool to automatically download/upload subtitles for video files (DIVX, MPEG, AVI, etc.) and DVDs using fast hashing.

Hotot is a lightweight Twitter and identi.ca client based on WebKit.

QTerm is a BBS client for X Window System. It supports telnet, ssh1 and ssh2 protocols. It also supports zmodem, URL detect, mouse action.

The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production. Currently, the gEDA project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.