There are great examples of communities helping to grow and solidify online marketplaces. eBay in its early days certainly leveraged the power of community to bring buyers and sellers onto its platform. Today, companies like Etsy, Uber and Airbnb are turning toward community for new ideas and new customers. But how do you build community, and how do you balance the needs of the community and the needs of the business? Or to put it another way, how do you simultaneously give up control and maintain control? Andreessen Horowitz board partner Boris Wertz – who built his own community while running Abe Books – is joined by Tindie’s CEO Emile Petrone and head of engineering Julia Grace to pick apart the notion of community. Can it be engineered? How much leverage do you give your “super-users,” and for some businesses is community even necessary?

What if we could tap into our government with the same speed and ease as our smartphones and search? Can technology make a difference in how government operates, and how we citizens interact with it? Two-time Mountain View Mayor Mike Kasperzak, OpenGov CEO Zac Bookman, and a16z’s Tom Rikert discuss government’s historically uneasy relationship with technology, how a growing trend in government transparency is being powered by software, and why you should be glad your local city council takes its sweet time to pass a budget.