Social networks have had a global impact: they are changing the nature of human society. Will their impact be lasting? Only time will tell, but I think so. If you want to be empowered to create your own or to have a deep understanding of how they work, this free course from Udacity is for you. It’s titled “Intro to Algorithms: Social Network Analysis,” and it will get you through all the math that you can’t do without when making a social network work.