crobb305 - 5:29 pm on Apr 12, 2011 (gmt 0)

In some high-confidence situations, we are beginning to incorporate data about the sites that users block into our algorithms.

I hope they have some very sophisticated methods for ensuring that a site hasn't been targeted by a take-down campaign. It wouldn't be hard for spammers/scammers to make a "sign up and block this link" statement in social media. I think it's foolish to allow this metric to ever be used. Techies are more likely to use Chrome, and techies are more likely to be webmasters who understand the impact. The downline abuse/manipulation potential isn't a stretch here.