Jyri Engeström is a Finland-born, California-raised entrepreneur who has built online social networks since the dawn of the web 2.0 era. With Yes VC, the early-stage venture fund he started together with his partner Caterina Fake, Jyri now invests in the next generation of the web’s social infrastructure. In our call with Jyri, we talk about him growing up in the Silicon Valley of the 90s, the roots of the social web, communities as essential building blocks of society, the role of venture capital in helping social movements grow, future trends and how the internet, at its best, helps people help other people.