How has Wikipedia impacted music encyclopedias?

Laurenz Lütteken, Anna-Lise Santella, and Harry White discuss how the advent of Wikipedia has impacted the field of musical reference works. http://www.oxfordmusiconline.com/public/book/omo_gmo A group of distinguished academics and publishers discuss “Referencing music in the twenty-first century: Encyclopedias of the past, present, and future”. This was for a conference organized by The International Association of Music