Topology Atlas - Topology Atlas is a publisher of information related to topology.

http://at.yorku.ca/topology/

Topology Course Lecture Notes - Topology Course Lecture Notes by Aisling McCluskey and Brian McMaster.

http://at.yorku.ca/i/a/a/b/23.htm

Topology - Topology is a math discipline who treats of the research of invariants in a geometry cleared of all idea of measurement or of distance.

http://www.chez.com/alcochet/toposi.htm

Links to Low-dimensional Topology - Links to low-dimensional topology.

http://www.math.unl.edu/~mbrittenham2/ldt/ldt.html

Journal of Topology - Oxford Journals | Mathematics & Physical Sciences | Journal of Topology.

http://jtopol.oxfordjournals.org/

A History of Topology - A history of Topology.

http://www-groups.dcs.st and.ac.uk/~history/HistTopics/Topology_in_mathematics.html

Applied General Topology - Applied General Topology. Editors-in-Chief: Salvador Romaguera, Manuel Sanchis.

http://www.upv.es/agt/

Geometry and Topology

http://www.maths.warwick.ac.uk/gt/

Geometric Topology - Geometric Topology. This area of mathematics is about the assignment of geometric structures
to topological spaces, so that they "look like" geometric spaces.

http://www.ics.uci.edu/~eppstein/junkyard/topo.html

Mathematics Archives - Topology - Mathematics Archives - Topics in Mathematics - Topology.

http://archives.math.utk.edu/topics/topology.html

Differential Topology - Areas of interest: Geometric topology, Combinatorial group theory. Matthew G. Brin

http://www.math.binghamton.edu/matt/

The Cantor Set - The fractal known as the Cantor Set, an exposition from the Platonic Realms Interactive Math Encyclopedia.

http://www.mathacademy.com/pr/prime/articles/cantset/

Topology Systems - Topology of strongly correlated systems.

http://cfif.ist.utl.pt/~xviiias/

Algebraic Topology Textbook - A downloadable textbook in algebraic topology.

http://www.math.cornell.edu/~hatcher/AT/ATpage.html

Algebraic Topology - Mathematical Atlas. Algebraic topology is the study of algebraic objects attached to topological spaces; the algebraic invariants reflect some of the topological structure of the spaces.

http://www.math.niu.edu/~rusin/known-math/index/55-XX.html

History of Knot Theory - History of knot theory.

http://www.maths.ed.ac.uk/~aar/knots/index.htm

WolframMathworld - Knot Theory 

http://mathworld.wolfram.com/topics/KnotTheory.html