IGS Graphing Program
frankiii (20k KGS and 21k IGS) has developed a graphing program for IGS players. Thus far, he's tested it on Zero9090 (21k+), myself and himself. Maybe it will one day make it into glGo or be featured on IGS.
My chart tells me that I need to play a few more games on IGS one of these days.
frankiii also has a Go blog. Drop by and see what goes on in the mind of a higher kyu player.