Scott runs PE Notes, a wiki to help with taking the PE exam. Although Scott has allowed us to use the information located on his wiki, he in no way guarantees it's accuracy. He has protected his work under a Attribution-Noncommercial-No Derivative Works 3.0 Unported license. Scott requested that all the work that was taken from and added upon from PE Notes be attributed separately from his own contributions. The proper attributes have been tracked online here.
See all the information that Scott has added to WikiEngineer here.