Since no one has mentioned it yet:
https://en.wikipedia.org/wiki/Reliability_of_Wikipedia
My favourite part is this block quotation:
WebMD is the only news source whose coverage of chemical risk is
regarded as accurate by a majority (56 percent) of toxicologists,
closely followed by Wikipedia's 45 percent accuracy rating. By
contrast, only 15 percent describe as accurate the portrayals of
chemical risk found in the New York Times, Washington Post, and
Wall Street Journal.^[6]