Keywords disappear!

[davis]

Hi! I hope that I can find answer for my question in this forum. I think you all can encounter the same problem with mine when doing SEO for your site. My question here is keyword disappear. This is my friend's website: indexmetals.com, the following keywords: trading metals, index metals, metals prices, futures metals; they used to appear on the first page of google, and those are not the competitive keywords. I did SEO regularly for my site, and didn't use any black hat method for this site, but just one day, all keyword disappear in google. When I checked site:indexmetals.com, all pages of this site are indexed very well by google. So can you solve this problem for me? Thanks for your help. I'm waiting for your reply. Hope that I can find answer for my question. This is very serious

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Link Building|Seo Marketing