You can read about our process in depth on our blog! But the quick answer is... Our content is vetted and curated by a team of subject matter experts, and is peer reviewed to ensure that it meets our high quality standards. Our cohort of experts is hand-picked by the Boundless team and includes professors, PhDs, and graduate students from leading universities. 

Even after our content is published, we continue to improve it based on feedback from the thousands of professors and students who use it every day. Our team of subject matter experts sources our high-quality content from the best online educational resources on the web (also known as OER -- open educational resources). Our sources include material from leading scientific organizations, such as the National Institute of Health, and top educational sites including Saylor.orgOER Commons, and Connexions.