Advances in Open Domain Question Answering Tomek Strzalkowski and Sanda Harabagiu (editors) (SUNY Albany and University of Texas at Dallas) Springer (Text, speech and language technology series, edited by Nancy Ide and Jean Véronis, volume 32), 2006, xxvi+566 pp; hardbound, ISBN 978-1-4020-4744-2, $259.00