Waterboy does data mining to assist with making fantasy football decisions. Currently all information is accessed through yahoo api. You must have an active yahoo account. You should also belong to a league in order to be able to access the data.
Provides an interface to retrieve nfl player data
Installation is easy.
Specify Gem dependencies
gem install waterboy
Setup your tokens
Drew Brees's info in the 2009 season
@request = Waterboy::ApiRequest.new('player', '223.p.5479')
More information on API can be found here
Information regarding yahoo's resources and keys can be found here