How often does Google take “manual action” against websites for spam, where a human being reviews a site and decides it deserves some type of penalty? For the first time, Google’s released a chart showing this, going back nearly 10 years.
“Legacy” indicates manual actions that Google took that weren’t classified into a more specific category, Google told me. Until around the end of 2007, most everything was either over “unnatural links” or “legacy” — I.E., “other.”
Click here to view the graph and to read more.