Go Resources On The Web

The GameOfGo Web-Ring: http://www.webring.org/cgi-bin/webring?ring=weiqi;list.

The GoTeachingLadder is a mustvisit place for people on the net and have less than 6 months substained playing experience.

SenseisLibrary is THE WIKI on GO / WEIQI / BADUK

Gobase http://gobase.org is a large repository of game records and articles.

There is also an active UseNet newsgroup news:rec.games.go (although it recently has been filled with crank posts).

Many free internet go servers exist, including

Dragon Go Server: http://www.dragongoserver.net/ (turn based, for those who don't like to spend hours playing a game, yet want to play many games at the same time)
Internet Go Server: http://www.pandanet.co.jp/English/
KGS: http://www.gokgs.com/
Legend Go Server: http://www.lgs.hinet.net/eng/
see also http://senseis.xmp.net/?GoServers

Also there is a freeware go program, a 9x9 version of the ManyFacesOfGo available at http://www.smart-games.com/igowin.html (but remember http://senseis.xmp.net/?IgowinIsBadForYourGame)

The OpenSource GnuGo is now on par with the commercial programs, and it has been ported to many platforms. Downloads available from http://www.gnu.org/software/gnugo/gnugo.html. That page also has a number of Go related links.

For those people interested in an editor/viewer for go games (which can also let the user play against GnuGo), there is a decent freeware at http://www.ruijiang.com/multigo/