nalysis. p. 416-435. Hershey, PA: IGI. Jansen, B.J. and Spink, A. (2008) Logfile analysis. In International Encyclopedia of Communication. Editors: Robin Mansell. Oxford: Blackwell Press. 6. p. 2730-2734. 29 EFTA00601605 Parts of Books Jansen, B.J. and Spink, A. (2008) How to Define Searching Sessions on