11 years into Biology study, 3 years popular science writing and 3 years running an NGO for popular science, G13 recently started an internet business, Guokr.com. Right after graduation he gathered writers he knew and founded Squirrel Group, an NGO offering writings on popular science through blogs. Guokr.com is more a medium, and new features and products will come along later”, G13 introduced Guokr.com. Its theme is popular science and most of the content is curated or created by Guokr editors. Popular Science, the Niche Market?