Stock Trading

Since opening an account with Scottrade, I have been using it as the real-time stock quotation tool. However, I don't like their analytical and charting tools. What else could we use?

1. Google portfolio - 20min delay of market price
2. Market Watch - I haven't used them yet
3. Stock Dimension - http://www.stockdimension.com/phase2new/index.php?cou=us

A friend of mine recommended me Stock Dimension. They can calculate momentum, which is very interesting. Don't know how they did this.