Octaviz - 3D visualization system for Octave. Description, news, and download. - http://octaviz.sourceforge.net/
Wikipedia: GNU Octave - Encylopedia article about the open source software product. - http://en.wikipedia.org/wiki/GNU_Octave
Matlab/Octave Compatibility Packages - Collection of matlab compatible functions for use in Octave. - http://users.powernet.co.uk/kienzle/octave/
GNU Octave Repository - Central location for custom scripts, functions and extensions to GNU Octave. - http://octave.sourceforge.net/
GNU Octave - High-level language, primarily intended for numerical computations that is mostly compatible with Matlab. History, news, documentation, and downloads. - http://www.octave.org/