PENGUIN 2.0

Penguin 2.0, which officially rolled out May 22, 2013

A great deal of speculation has focused on whether Penguin 2.0 targeted the same thing. As previously mentioned, we're still in the early days since its release. But here's a preliminary look at reports from around the web.

2.3 percent of English queries were impacted by Penguin 2.0

 
Penguin 2.0 drilled deeper into websites to look for spam; analyzing internal pages as opposed to just the homepage of websites. This was actually a pretty interesting revelation, because it wasn't previously known to the SEO community that Penguin 1.0 only analyzed inbound link profiles of domain homepages. 

The fact that internal pages are now analyzed means that black-hat webspam tactics such as manipulative link building to internal pages won't escape Google's ever-seeing eye.