Computational Algebra

Communications in Computer Algebra
The ACM SIGSAM Bulletin. Some tables of contents and sample articles.
http://www.apmaths.uwo.ca/~rcorless/sigsam/

Computer Algebra Nederland (CAN)
Coordinates the use of computer algebra in education and research. Research reports, newsletters and historical material.
http://www.can.nl/

GROEBNER: A Package for Calculating Gröbner Bases
A REDUCE package by H. Melenk and W. Neun, Konrad--Zuse--Zentrum, Berlin.
http://www.uni-koeln.de/REDUCE/3.6/doc/groebner/

Groebner Bases
Definitions and examples, with Java applet.
http://www.geocities.com/CapeCanaveral/Hall/3131/g_bases.html

SIGSAM
ACM Special Interest Group in Symbolic and Algebraic Manipulation. Site has details of meetings, reports and other links.
http://www.sigsam.org/

SymbolicNet
Information centre for symbolic mathematical computation. Links to research and software.
http://www.symbolicnet.org/