Java-based free software for learning audio and flashing-light Morse code. Features include very flexible audio system, drills based on live news feeds, and adaptive drilling strategies.
NSEconomy is a PHP/MySQL-based program for gathering data from NationStates (www.nationstates.net) and calculating useful statistics, such as GDP, based on the game's XML data feed. The stable version is hosted at http://nseconomy.thirdgeek.com/.