The sites which make it possible to save the games are rare.
However that is quite useful to be able to analyze the games later.
I know Yahoo and Kurnik.
Kurnik makes it possible to save the games but
there are few players for this game on this site.
Yahoo always has many players but it does not make it possible to save the games.
Do you know other sites which make it possible to play checkers and to save the games?