Lately I've been thinking about what constitutes "website quality" in the eyes of Google... and I thought this would make a good discussion topic here on the forum.

It's obvious that they exist and that Google have a very complex system in place to determine a website's quality score, whether "overall" quality or "topic specific", there are things that G looks for when making the determination.

What do you think they are? On page and off page factors?

In my observations (small sample size) Panda seems to be:
- devaluing links that are not 100% on topic
- devaluing links from borderline spammy websites (like auto blogs and similar sites with fluff for content)
- devaluing small articles and partially duplicate content
- values larger articles (above 500 words)
- values social media mention
- values media content (like videos and photos)

What are your thoughts?