The NFL Data [SporTrac](http://www.sportrac.com] has a wonderful array of financial data on sports. A student going to work for the Seattle Seahawks wanted the NFL salary cap data and I also found data on the English Premier League there. Now I have a source to scrape the data from.
With a source in hand, the key tool is the SelectorGadget. SelectorGadget is a browser add-in for Chrome that allows us to select text and identify the css or xpath selector to scrape the data.