CE-Yo of Stonyfield Farm Gary Hirshberg outlines his secret to green success in Stirring It Up: How To Make Money and Save the World. Hirshberg describes how he built a $300 million company from the ground up using earth-friendly principles, and Girlawhirl's taking notes.
But more than just outlining his own personal path towards a greener pasture, Hirshberg shows how easy it is for big companies to go green, and the economic benefits green principles provide in the long run, like brand loyalty among consumers (thankful for the organic practices), reduced advertising costs and increased profits through smaller carbon footprints and green manufacturing practices.
He describes the benefits of using his product as a platform, like printing environmental tips on Stonyfield Farm Yogurt lids. Hirshberg also talks about what other major companies - like Timberland, Patagonia, Newman's Own and Clif Bar - are doing to reduce their respective carbon footprints and promote a greener business. 
And of course Girlawhirl loves the coupons for Stonyfield Farm, Honest Tea, Seventh Generation and Organic Valley, among others, in the back of the book. It's a nice thank you to her, since she purchases products from most of these like-minded brands as well.