This article discusses the quality of commercial and library-sponsored AskA services and uses this as a prediction for the success of the programs. The authors also explore the idea of the commoditization of information and its acceptance rates in different countries, and use these to predict the success of commercial and library-sponsored AskA services both in the United States and abroad.
Baum, J., & Lyons, K. (2004). Predicting the success of commercial AskA services, in the United States and abroad. The Reference Librarian, 85, 81-89.