Wilburforce - 4:24 pm on Dec 5, 2013 (gmt 0)
For the SERPs that I watch, most of the poor-quality Top 10 results are from small sites
Same here (UK niche service). Heavily location-based: if I don't do anything to hide it, most of what I get is centred on Coventry, which is nowhere near me, but is where my ISP's server is located. I could always tell Google my address, I suppose...
If Google are genuinely trying to promote quality they are getting it badly wrong in my sector. One of the only sites to stay fairly consistently on page 1 for one key term has a non-compliant - Frontpage! - five-page site with next to no information on it. Presumably it has hung in there because it doesn't appear to have been updated in the last five years and has hardly any backlinks at all. Nobody would bother to plagiarise the contents, so it doesn't fall foul of Google's failure to discern an author from a scraper.