Mr3putt - 11:10 pm on Mar 3, 2011 (gmt 0)
I wonder if what you're seeing isn't so much the keywords in the domain, but the effects on targeted, narrow niche websites?
The only problem is the narrow niche websites that I'm seeing outrank me are of what I would call crappy. Sites ranking for competitive terms that have 9 million search results and consist of 5 pages of content and a contact page.
It's almost as if in this update it was easier for google to target relatively high indexed sites and the smaller ones slipped through the cracks. It's more likely google will find more things wrong with a 2,000 page site vs a 5 page site.
It's like the ratio for demoting the sites is off:
2000 page site/100 pages labeled as poor quality
20 page site/1 pages labeled as poor quality
Both sites have 5% of their pages labeled as "poor quality" but for some reason in this update it seems as though the 2,000 page site is taking the bigger hit then the 20 page site.