Mathematical Quotation Server  
   Only mathematical quotations.
   http://math.furman.edu/~mwoodard/mqs/mquot.shtml

Against Excessive Skepticism  
   Find the perfect rejoinder for the closedminded doubters in your life, or gather ammunition for the next flamewar on sci.skeptic newsgroup.
   http://www.eskimo.com/~billb/weird/skepquot.html

A Short Dictionary of Scientific Quotations  
   A collection of quotations about science by scientists and other writers both ancient and modern.
   http://naturalscience.com/dsqhome.html

Quotes for Programmers  
   Quotations about software, computers and programming.
   http://www.sysprog.net/quotes.html

The Contempt Page  
   Quotations against the intense dullness in today's software practice.
   http://www.schnada.de/quotes/contempt.html

Quotations in Physics  
   Gathered by the Salt Lake Community College Physics Department.
   http://www.slcc.edu/schools/hum_sci/physics/whatis/quotations.html

Last Words  
   Negative predictions on ultimately successful technologies.
   http://web.mit.edu/randy/www/words.html

Scientific Quotes  
   A searchable list of scientific quotes. Categories are computers, chemistry, physics and mathematics.
   http://openchemist.net/quotes/