Wikipedia, the online encyclopedia that was begun in 2001, had a reputation as an unreliable resource as it is edited by volunteers. Many who were responsible for managing school IT at the time blocked access to it on their internet filters; I was one of those who did. Over time, educators and IT professionals realized Wikipedia is about as reliable as other encyclopedias and there are many advantages to using it, including a wider collection of articles that are updated more frequently compared to printed encyclopedias. It is unusual to find schools that continue to block Wikipedia today. Teachers’ and IT leaders’ perceptions of Wikipedia changed over time, and they changed both the configuration of the systems and the role it played in their teaching.