garyr_h - 1:27 am on Mar 8, 2013 (gmt 0)
Google hires people to look through a series of websites and decide which is quality, spam, malicious, brand, etc. along with various other categories. They can do this on a website to website basis or even on a keywords only basis (if it is a brand name, for example). They hire some Americans, but they also hire many non-Americans to do the job. You can see Google listings with this job description in Indonesia and Thailand especially. They do require "fluent English speakers".
They give the same websites/keywords to a number of people and if they all come up with the same answer then that is how it is treated. If a website is marked as spam, for example, it is labelled as such until a manual review is requested for someone directly from Google to look at.
Sorry if this shouldn't be posted here, but I have been looking for jobs in South East Asia and I run across these all the time, so I assume that it is public information.