Laffer Project is an effort to build complete IM environment using the model for developing Open Source Software.
Laffer Project comprises of several small projects.
IMPORTANT: As of 1 September 2011, I recommend that you download the fork of Rash here: https://github.com/paxed/rash-qdb-fork . Rash is a clone of the website bash.org. It was a project of mine in high school, and is no longer maintained.
voltMessenger is a web-centered IM system. It consists in a server written in PHP that can run on most webservers, and a client written in C++. Easily deployable in office environments or as a website extension. THIS PROJECT HAS BEEN SHUT DOWN.