Here is where to find out more about G&S on the web.
- G&S Home Page (not very useful)
- G&S Fishing Tournaments
- G&S Product Information
- G&S Role Play HUD
They maintain an in-world store on GyS. There are also quite a few G&S markets. (link seems to be broken)
You can join the support group and ask questions about the products. You can also advertise RP products that you are selling for coins. Be warned though, they will jump all over you if they hear the word lindens!