Reference 1| Reference 2 | Picture Permission

1. From Library of Congress:
Under the fair use doctrine of the U.S. copyright statute, it is permissible to use limited portions of a work including quotes, for purposes such as commentary, criticism, news reporting, and scholarly reports. There are no legal rules permitting the use of a specific number of words, a certain number of musical notes, or percentage of a work. Whether a particular use qualifies as fair use depends on all the circumstances. See FL 102, Fair Use, and Circular 21, Reproductions of Copyrighted Works by Educators and Librarians.

2.  The images used for the homepage banner and flash clip is from “Nanking Massacre 1937” website at <http://prion.bchs.uh.edu/~zzhang/1/Nanking_Massacre/contact.html>
Permission was already granted by Zhang since 2001. 
As the following:
           
“Material available on all "Nanking Massacre 1937" web pages at this site can be freely used and distributed for educational purposes. Other uses are expressly prohibited.

Please send your correspondence to zzhang@bayou.uh.edu. Thank you for your support.”

Reference 1| Reference 2 | Picture Permission