General Partner and Co-Founder of Craft Ventures. Previously: Founder/CEO of Yammer. Original COO of PayPal.

Co-founder/CEO of KeepTruckin. ex-VC at Khosla Ventures. ex-AdMob/Google.

Data Guy

Exploring the chasms and commons between good business and good citizenship | Marketing @Stitcher

Interested in Computational Design and Generative / Math Art.