people

• Links to low dimensional topology
• People in geometric group theory

software

• Ben Burton's Regina
• Nathan Dunfield's CompuTop.org Software Archive
• Ewgenij Gawrilow and Michael Joswig's Polymake
• Oliver Goodman's snap/tube/isometric
• Daniel Grayson and Michael Stillman's macaulay 2
• Jeff Weeks' Topology and Geometry Software