This tool hosts Afterglow, a free, open-source live-coding environment for creating light shows using any interface compatible with the Open Lighting Architecture, entirely inside Max. It allows Max patchers to control the lighting cues, including adjusting their parameters as each frame of lighting control information is generated, so you can do things like using audio analysis or vizzie to create effects on a huge lighting grid. The tool page describes the Max objects that the package offers, and explains how to install the Open Lighting Architecture.
MySQL Connector/J for MXJ The MySQLJDBC MXJ object provides max with a simple interface to the MySQL Connector/J native Java driver that converts JDBC (Java Database Connectivity) calls into the network protocol used by the MySQL database.
Update: Version 1.2 is available to download, adding support for custom Twitter API keys.
Speech and phoneme recognition and segmentation. Recognize is a speech to text based on Sphinx4.
A Max object written in java (using mxj) to communicate back and forth over a single persistent TCP/IP socket with a TCP/IP server, something the net.tcp objects that ship with Max can't do.