
Wikipedia is cool, Wikipedia is filled with information, and Wikipedia is great fun to visit.
That said, reminding children about the authority of references and the expertise of authors — whenever children begin research — is an important part of teaching and parenting. A critical 21st Century and life skill is understanding how to go about judging the quality of references and especially learning how to figure out when information is not up to snuff.
If students start out a project by looking up a topic on Wikipedia, and many of them do, they should hear — over and over at every age — about the importance of seeking out and reading other resources to confirm the facts. Adults, too, need to make this a habit.

A new book, Wikipedia: 3.5 Million Articles and Counting, offers parents and educators a great opportunity to read together and learn more — lots more — about Wikipedia. Author Heather Hasan writes in detail about the history and philosophy of this mammoth open-source encyclopedia, explaining how Wikipedia works and describing how the editors keep track of new entries, edits, and re-edits.
Hasan points out the ways that Wikipedia writers occasionally argue over topics, and she notes that editors often decide to lock down a subject or entry. Other short sections of the book share Wikipedia facts and myths, a glossary, and several pages of bibliographic references.
If you read this book with children in your family or students in your class, be sure to have continuing conversations, both while reading the book and afterwards, about the importance of expertise and authority, pointing out that another reason to confirm the facts — aside from worrying about misinformation — is to learn whether even the experts disagree.
An excellent Wikipedia documentary, Truth in Numbers, is available at Amazon and includes interviews with many of the people who have helped the Internet to develop and grow — the movers and shakers of the World Wide Web.