 Yahoo Groups : maththeorists - http://tech.groups.yahoo.com/group/maththeorists/ Discussions relating to number and mathematics philosophy. |
 Yahoo Groups : Erdos - http://tech.groups.yahoo.com/group/Erdos/ A group for proposing problems, sharing ideas, discussing areas of research and reviewing papers and books of interest. [Requires Yahoo! membership] |
 Yahoo Groups: Math For Fun - http://tech.groups.yahoo.com/group/mathforfun/ Focuses on solving challenging math problems. |
 Yahoo Groups in Mathematics - http://tech.dir.groups.yahoo.com/dir/Science/Mathematics Mailing lists and discussion groups (including former OneList and eGroups). |
 Yahoo Groups: Theory-edge - http://tech.groups.yahoo.com/group/theory-edge/ Informal discussion of research in algorithmics, mathematics, and their applications. |
 WebMath - https://mail.cms.math.ca/mailman/listinfo/webmath A mailing list for those interested in mathematics on the World Wide Web. |
 Undernet Math - http://lists.topica.com/lists/undernet-math/ Topica email list serving the users of the IRC channel #math on the Undernet, for discussion and challenging puzzles. |
 The Institute of Mathematics and its Applications Discussion Forums - http://www.ima.org.uk/forums/ Discussion of mathematical issues with councillors and members of the UK professional body, open to all. |
 Maths-Education - http://lists.nottingham.ac.uk/mailman/listinfo/maths-education Email forum for those working in mathematics education to share ideas and experiences, and request information. |
 Javamath-discuss - http://lists.sourceforge.net/lists/listinfo/javamath-discuss A general mailing list for discussion about mathematical software development in Java. |
 Mathstore Electronic Discussions - http://mathstore.ac.uk/etalk/index.shtml A list of mailing lists compiled by LTSN. |
 Math Forum: Public Discussions - http://mathforum.org/kb/forumindex.jspa Group topics include general math, education, geometry, software, calculus reform, research and recreations. |
 JISCmail - http://www.jiscmail.ac.uk/mailinglists/category/Maths_&_Statistics.htm Mailing lists in mathematics and statistics for the UK academic community. |
 Math Help Forum - http://www.mathhelpforum.com/ A discussion forum for students and teachers of mathematics at school, college and advanced levels, including homework help for students. |
 Math is Fun Forum - http://www.mathisfunforum.com/ A discussion forum for K-12 math students and teachers, with a focus on learning and teaching math the fun way. |
 My Math Forum - http://www.mymathforum.com Active forum for a better understanding of mathematics. Includes puzzles and riddles and some solved problems. |
 Ars Mathematica - http://www.arsmathematica.net/ News and discussions on the mathematical arts. |