A study published earlier this year ("Seeking Health Information Online: Does Wikipedia Matter?") in the Journal of Medical Informatics Association found that Wikipedia ranked in the top ten search results for health-related topics 71-85% of the time, depending on which search engine and keywords were used. This came as little surprise. The reliability of the information available, however, has always depended on the knowledge and rigor of Wikipedia's contributors and editors. - Valeria Maltoni