Bad link

I think I've finally traced the G filter, that prewents this site from appearance in search results.
I've removed it.In the case of blog it should work within few hours.
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And this worked.
Apparently one of my sites is filtered by G.
It is visited by bots everyday but:
Not shown in results under full domain name.
Not shown for rumburak keyword.
No info: only site: results.
I am in the process of cleaning the mess with that particular site.
So far the page on which is the link to bad site is banned from SE results as well.
Now I have removed another link to the site that dropped in SE results some 100 places down, and see if it has the influence on the overall position of the blog pages themselves.