I am Dariusz Stachowski.
Gorrion Go Game Server. I am the author of the Gorrion game server. In addition to Go it also supports games of Chess, Havannah, Hex, Othello / Reversi, Pente, Onyx, Unlur, Y. The web site is simple in format, is free from advertisements or subscription. You may engage in conversation with your opponents. I believe that social interaction is a vital part of game playing. Please do join in the fun. Go sizes are 19x19, 13x13, 9x9. Handicap games are not supported.
Smartphone Functionality. The web site is simple to use from a smartphone. Please do try.
I am also the author of the GoRilla game editor for Windows OS. GoRilla is an SGF game editor / viewer for the analysis and review of games of Go. I hope that you will find it an enjoyable and useful program and that it will help you improve your skill at Go. GoRilla is freeware. You may download it from the program web site.