What does the future of business look like? In an informative talk, Philip Evans gives a quick primer on two long-standing theories in strategy — and explains why he thinks they are essentially invalid. (Listen for the absorbing tale of a surveillance program named Nora which was so useful it prompted competing Las Vegas casinos to cooperate with one another.)

In this high-energy talk, Back to the Roots co-founder Nikhil Arora shares his unconventional methods for launching his company from a college experiment to a fully functioning social enterprise. Arora shares how candid transparency (and pictures of ugly fungi) helped his company’s mushroom growing kits become a hit among children and on Facebook. For each kit sold, Back to the Roots also donates one to an elementary school. The good will and social media generated sold more kits, which resulted in more donations.

“Google made headlines by saying they would make money without doing evil,” he says. “That seems like a cop out. In business today, you can make money and do good.”

By @ThamKhaiMeng, Worldwide Chief Creative Officer, Ogilvy & Mather

What defines success in social media? How can you ensure success across different social media platforms, countries and cultures? This document sets out We Are Social’s best practice guide to strategic social media marketing, outlining our 10 core steps to enduring brand engagement. It also contains an overview of our 8-step framework for planning powerful social media strategies

In this 99U talk, Jonathan Perelman breaks down the tactics and mindsets used by Buzzfeed to stand out on social media and elsewhere (complete with its trademark listicles). By adopting a social-first mindset and creating content that appeals to emotion, Buzzfeed has grown from a small blog to a cultural phenomenon read by tens of millions of people (including the President of the United States).

His advice? Respect the platform you’re using (e.g. Twitter is about timelines, Facebook is about emotion), stay positive, and tell a story that is “genuine, authentic, and meaningful.”

An idea permeates our modern view of relationships: that men and women have always paired off in sexually exclusive relationships. But before the dawn of agriculture, humans may actually have been quite promiscuous. Author Christopher Ryan walks us through the controversial evidence that human beings are sexual omnivores by nature, in hopes that a more nuanced understanding may put an end to discrimination, shame and the kind of unrealistic expectations that kill relationships.