Can anyone recommend a good introductory text for topology?
http://jeremykun.wordpress.com/2012/08/26/metric-spaces-a-pr...
http://jeremykun.wordpress.com/2012/11/04/topological-spaces...
http://jeremykun.wordpress.com/2012/11/11/constructing-topol...
http://jeremykun.com/2013/01/12/the-fundamental-group-a-prim...
It's actually availible free from archive.org[0], which is a huge plus.