IngMath
   Program can be used for study purposes by students and for mathematical calculations by engineers, natural scientists and mathematicians. It covers linear algebra, linear programming, transport optimization and rational functions.
   http://www.verw.tu-dresden.de/IngMath/ingmathe.html

Math Rescue
   Fun educational math game for children ages 4 to 12, that teaches addition and subtraction. From Apogee Software, Ltd.
   http://www.apogee1.com/math/index.html

PC-ECAP
   AC circuit analysis program designed for anyone interested in electronics. The software is easy to use and will handle circuits with up to 90 nodes and 1000 components. High resolution graphs can be viewed or printed.
   http://www.cdquickcache.com/pcecap.htm

Program Chemistry
   An electronic processing of the Periodic Table. List of chemical elements and their properties, searching and testing software. Many useful functions which paper table doesn't have.
   http://www.tabulka.cz/english/

Vocabulary Power
   Teacher vocabulary test word activities.
   http://wiscocomputing.com/vocpwr.htm

Wisco Word Power
   Teacher vocabulary test activities.
   http://wiscocomputing.com/wordpwr.htm

Word Rescue
   Game for children ages that teaches spelling, word meanings, logic and reading.
   http://www.apogee1.com/word/index.html