There is a specific forum just for Google Sandbox, its a subforum of this one. You can also simply google "Google Sandbox" and read up that way. http://en.wikipedia.org/wiki/Sandbox_Effect
Sorry but that post was not useful to anybody. The guy specificly asked a question and should get a specific answer as some members did with the DP faqs and such. That should answer your question but if not just tell us what you don't understand but again there is a specific board for this so lets try and keep it there. Thanks!
This is where sites are kept till they get mature enough to be included in the top rankings for a particular keyword.