There’s a lengthy article exploring the similarities, differences in methodology and accuracy of Wikipedia and the Encyclopedia Britannica.

Summary:
“Wikipedia is a great starting point. It?s a lesson in research methodology, a fun way to share expertise, and a groundbreaking new way of working. Its consensus model represents a shift in management styles and away from hierarchical organization. And its collective brain is like a conscious universe in which we are all one. Britannica is a different animal. Flawed, yes. Behind the times with regard to non-Western and minority leadership”

From Information Today