From what I know, it's never been proven that Google's sandbox definitely exists. If it does, though, the sandbox is only applicable to new domains. You're most likely being deindexed for another reason - duplicate pages, decrease in the accumulation of backlinks, decreased pagerank, etc.
cscgal
The Queen of DaniWeb
19,421 posts since Feb 2002
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Google has admitted to there being a sandbox. It's just nothing like the 1,000 different explanations newbies have scattered across the web. It's everyone's favorite excuse for not ranking well. Easier to blame Google then themselves (and their poor content).
With the sandbox either you are in or you are out. It affects only new sites. That's about the only things anyone knows for sure. Anyone tries to tell you anything else about the sandbox is a fact they are full of poo poo. ;)
stymiee
He's No Good To Me Dead
3,360 posts since May 2006
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Google's index fluctuates over time. That's probably all it was.
stymiee
He's No Good To Me Dead
3,360 posts since May 2006
Reputation Points: 161
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