Essays about algebraic topology

Survey articles for the general public

• Topology articles from Eric Weisstein's World of Mathematics, sponsored by wolfram.com.
• Geometry/topology section of Mathematical Atlas, coordinated by Dave Rusin (Northern Illinois Univ)
• What is topology?, by Bob Bruner (Wayne State Univ)
• What is algebraic topology?, by Joe Neisendorfer (Univ of Rochester)
• What is topology? , by Neil Strickland (Univ of Sheffield)
• Encyclopedia article about topology, by Don Davis (Lehigh Univ)
• What is Topology (intro to course), by Zbigniew Fiedorowicz (Ohio State Univ)
• What is topology, by Kevin Iga (Pepperdine Univ)
• What is topology , by Jussi Talsi (Finland).
• A brief history of topology by Artur Gorka (Clemson Univ)
• History of Topology (early years), from St Andrews Univ History of Math archive.
• Algebraic topology entry in Wikipedia (online encyclopedia)

Survey articles about topics in topology, written for nonspecialists with some knowledge of mathematics

• Higher dimensional group theory, by Ronald Brown (Univ of Wales, Bangor)
• Knot Theory, by knot group at Univ of Wales, Bangor