1. Webpages which had scraped content which were ranking high
pre-Penguin are now mostly ranking on page 6-10.
2. Unique content is definitely driving up website rankings
(atleast a little bit).
3. The more unique content a site has on the page, the higher the
rankings, generally speaking. We have managed to get “penalized”
domains ranking higher simply by placing 1000 words of unique
content on the landing page.
This all means that content has a new importance post-Penguin.
If your website has less than 500 words on the landing page, you
can easily increase your rankings by adding more unique content.