Schoology
Schoology is a learning management system for schools and businesses, targeted mainly at schools. History 
Schoology was designed by Jonathan Friedman, Ryan Hwang, and Tim Trinidad in 2007 while studying at Washington University in St. Louis. Originally designed for sharing notes, features were gradually added and modified. Schoology secured its first round of equity financing, totaling $1,250,000, with an investment of unknown origin in 2009 and an investment by Meakam Becker Venture Capital in June 2010. In 2012, Schoology raised $6 million in a round led by Firstmark Capital; in 2014, it raised $15 million in a funding round led by Intel Capital; in November 2015, it raised $32 million in a funding round, led by JMI Equity. In November 2013, Schoology had over 7.5 million users across about 60,000 schools. Use 
Among Schoology's features are attendance records, grades, exams, and homework. The interface consists of a list of task and links to folders and assignments for students. Schoology can be integrated with the school's current grading system. Visually, Schoology is very similar to the environment of many social networks. Schoology offers accounts for parents as well, mainly for viewing the grades of their children. References 

Social networking services
Learning management systems
Educational software