Not only Google updated it’s Panda (3.3), but it also turned off one misterios ranking factor that was used for years.
This can drastically change the way SEO works. What exactly Google did? Nobody knows and Internet Marketers are guessing as always…
The misterios ranking factor that is missing now was named “Google Link Evaluation Factor”.
The only info G is giving away is this “We often use characteristics of links to help us figure out the topic of a linked page. We have changed the way in which we evaluate links; in particular, we are turning off a method of link analysis that we used for several years. We often rearchitect or turn off parts of our scoring in order to keep our system maintainable, clean and understandable.”
Reputable site Search Engine Land says that they “..have reached out to Google in the past, asking for further clarification on the items in these monthly roundups. The company has indicated that the blog post says everything Google wants to say. That, along with Google’s understandable (and necessary) reluctance to give away too many details about ranking signals, leads me to assume we won’t be getting anything more than the above about this.”
For all Google updates please see the page SEO Updates