Here's Andrew Chen when you need him! http://andrewchenblog.com/2009/01/19/how-to-create-a-profitable-freemium-startup-spreadsheet-model-included/ http://andre

Here's Andrew Chen when you need him! http://andrewchenblog.com/2009/01/19/how-to-create-a-profitable-freemium-startup-spreadsheet-model-included/ http://andrewchenblog.com/2009/01/19/how-to-create-a-profita... Great post. And thanks for all the other links guys, very useful resources. The SXSW Web App Autopsy deck is very interesting.