Glt is a library of C++ classes and routines for programming interactive 3D graphics with OpenGL. The aim of Glt is to augment the OpenGL API with convenient mechanisms for manipulating the OpenGL state machine. Glt is a work in progress, and by no means covers the entire OpenGL specification. However, it already includes several useful classes and is designed so that additional classes can be added easily. In addition to Glt, the GlutMaster classes provide C++ wrappers for the GLUT API.
GNet is a network library. It is object-oriented, written in C, and built upon GLib. It is intended to be easy to use and port. It supports abstract Internet addresses, TCP, UDP, IP Multicast, IPv6, asynchronous DNS lookups, SHA, MD5, Base64, URIs, and SOCKS. It comes with documentation and examples.
GNOME Basic is an attempt to provide a 100% compatible replacement for Visual Basic, VBA, VBScript, and other associated languages. It was originaly focused at making VBA macros work inside gnumeric, but due to scope slippage it executes some forms, parses most VB, and executes simple ASPs. With better Bonobo integration, a fully compatible MS environment will become feasible.