Goldtrade is a project mainly written in RUBY and JAVASCRIPT, it's free.
Simple Rails app that uses Yahoo Finance to follow the stock price of gold.
= Gold Trade
Simple Rails app that uses Yahoo Finance to follow the stock price of gold. You can make virtual investments and track the value over a course of time with a simple graph.
The code is easily extendable to support other stocks as well, but gold was the most interesting at the time for me.
== Demo
Live application is running at: http://trade.heroku.com