I don't remember how I found this site but I continually return to play Gin (which I've never played for real) and have learned a bit of how the game is supposed to go.
That's mainly why I ended up sticking around. Initially I lost quite a few Gin games to Bill, but after a bit I started to get a little smarter. It was easier than trying to learn the game by reading dry wikis or other sites trying to explain how to play. I also love their solitaire collection and the War card game. It's very well set up.
I think the owner is doing a great job at keeping the site updated and fun to play. I believe he is in the Netherlands and made the site up for fun.