I've one site and always furious with results from Google USA. My site ranked #2 for my preferred keywords in Google.com every countries and even in all Google DC's itself. Except only results in Google usa which send my site to fluctuated around #96 - 112 but allinanchor still #2. I tried to figure it out what's going on with my site and didn't find any clue about that. My site is around 4 months old and I think it might be trapped in sandbox. Is my site sandboxed or not? My site built up with quality content updated on regular basis plus both quality and non-quality link (70:30 ratio) Thanks in advance for your help.
If your pages are not listed at all for the really competitive keywords and fluctuating wildly for others, you could be sandboxed