Refereed Conference Proceedings Spink, A., Koshman, S. and Jansen, B.J. (2005) Tracking Web Search Trends from 1997 to 2005, Internet Research 6.0: Internet Generations Association of Internet Researchers. Chicago, IL. 5 — 9 October. Resnick, M, and Jansen, B.J. (2005) An Empirical Study of Paid Search in Product Search and Purchase, The Human Facto