This new paper from Google seems to fit well with many of the patents and papers I've been blogging about recently involving learning about facts on Websites and corroborating those facts.
A New Google Ranking Algorithm?

According to, it's coming soon:

"Instead of counting incoming links, the system – which is not yet live – counts the number of incorrect facts within a page. "A source that has few false facts is considered to be trustworthy," says the team."

Here's the paper on which the article is based

"We call the trustworthiness score we computed Knowledge-Based Trust (KBT). On synthetic data, we show that our method can reliably compute the true trustworthiness levels of the sources. We then apply it to a database of 2.8B facts extracted from the web, and thereby estimate the trustworthiness of 119M webpages. Manual evaluation of a subset of the results confirms the effectiveness of the method."
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