I have been asked about STEM PBL books and information. At the risk of self-promotion I am posting the references to two books that deal with the current state of issue. I wrote them both so I am biased but both books were the result of working with teachers for the last four years. The second book is a compilation of lessons by teachers for teachers who have participated in the work.
1. Capraro, R. M., Capraro, M. M., Morgan, J., & Scheurich, J. (Eds.) (2010 -available now from the publisher by advance order). A companion to interdisciplinary STEM project based learning: For teachers by teachers. Rotterdam, The Netherlands: Sense.
2. Capraro, R. M., & Slough, S. W. (Eds.). (2008). Project based learning: An integrated science technology engineering and mathematics (STEM) approach. Rotterdam, The Netherlands: Sense.