Cygwin domestic Mirror: http://mirrors.sohu.com/cygwin/
Older versions of ant download: http://archive.apache.org/dist/ant/
Older version of Nutch download: http://archive.apache.org/dist/nutch/
Older versions of SOLR download: http://archive.apache.org/dist/lucene/solr/
Older version of Ecplise download: http://archive.eclipse.org/eclipse/downloads/
Common Jar Pack Downloads: https://cn.jarfire.org/list
Common Jar Pack Downloads: http://www.java2s.com/Code/Jar/CatalogJar.htm
Online documentation
Nutch installation on ecplise: Http://wiki.apache.org/nutch/RunNutchInEclipse
Online tools
Make ICO format icon: http://converticon.com/
RGB Color Scale Code query, code reverse query color: http://www.59178.com/tools/sejie.asp
Good documentation for learning Nutch:
Nutch search engine (1th Phase) _ Nutch Introduction and Installation: Http://www.cnblogs.com/xia520pi/p/3615554.html
Nutch Search engine (2nd Phase) _ SOLR Introduction and Installation: Http://www.cnblogs.com/xia520pi/p/3625232.html
Nutch Search engine (3rd Phase) _ Nutch Simple application: http://www.cnblogs.com/xia520pi/p/3663506.html
Nutch Search engine (phase 4th)-Eclipse Development configuration: http://www.cnblogs.com/xia520pi/p/3695617.html
Java development commonly downloaded URLs