I have recently been introduced to "The Business Model Canvas" created by Alex Osterwalder. I have fruitfully brainstormed few ideas using this. I created a small spreadsheet template for noting down the ideas (spreadsheet templates attached).
A better, full-featured version is available as a web-app - http://bmdesigner.com/
A better, full-featured version is available as a web-app - http://bmdesigner.com/
Alex Osterwalder's website:
Alex Osterwalder's video:
His book looks exciting - looking forward to buying one:
PS: I have used OpenOffice for generating this - I am not sure how this would look on Excel??