Those who read this blog know that in addition to writing about the stock market I also dabble in writing software. I have been experimenting with web widgets lately and I have created a page to monitor the market action during the trading day. It's called the TradeRadar Stock Center - Live Market Monitor . The page provides a configurable list of quotes that is updated every 30 seconds. There are four small charts that can each be set up to display an individual stock, ETF or index. The charts also update every 30 seconds. (Quotes and charts are courtesy of Yahoo!) The Stock Market Update feed from Briefing.com is provided. This feed is updated every hour or half hour throughout the trading day. I have provided the feed with a refresh button so you can get the latest update without having to reload the whole web page and possibly lose what you have set up. If you see something interesting happening on your charts or your quote list, analysis tools are provided so you can se...