How can we begin to make sustainable decisions without information about the products and services we buy? At Sourcemap, we believe you have a right to know where things come from and what they're made of. Sourcemap is a free and open platform for understanding the social and environmental impacts of modern supply chains. It is a rich social tool for crowd-sourcing information from producers, designers and consumers to build a comprehensive catalog of consumer products. Built-in visualizations and calculators allow you to estimate the impact of consumer products, foods and events. The open-source software platform also provides a rich database of environmental and geographical information to help start a discourse around what we should be making and buying as a society.