if google penalized you and clear you all database on google that means your site in send box check here more info about Send Box search.code-head.com/F-What-is-Google-send-box-24651
Sandbox is place where Google search engine store out or send out all the websites which uses black hat techniques for the optimization of the websites.
http://forums.digitalpoint.com/forumdisplay.php?f=67 - this is a proper forum for your thread. Use Search before posting, ok?
No, James, I was mentioning that this thread was started in inappropriate forum. And also there're hundreds of threads similar to this.