lucy24 - 10:48 pm on May 9, 2012 (gmt 0)

Wouldn't that depend on what you consider "negative data"? If nobody ever clicks on a search result, that in itself would be interpreted as negative. A search engine-- even g###-- won't stay in business if nobody ever clicks on its #1 result.

Sites with static HTML content. Low quality content.

Is that one description or two? That is, does "static html" = "low quality"?

These old sites never really received much traffic from Google over the years

How do you know?

I'm not trying to be hostile, honest. It just seems as if there's something more you're not saying.