Scientific Presentation Skills Resources
http://www.writing.eng.vt.edu/slides.html
http://www.io.com/~hcexres/tcm1603/acchtml/oral.html
Presentation slides and handling audience questions
http://ewh.ieee.org/soc/pcs/index.php?q=audio
Basic color theory for slide design
http://www.colormatters.com/colortheory.html