From the article: "Google has announced the latest in its ongoing updates to the Panda algorithm that targets low-quality websites.
And they’ve taken the somewhat novel approach of using Twitter to make this announcement:
- Panda refresh rolling out now. Only ~1.6% of queries noticeably affected. Background on Panda: goo.gl/mTKCH -
As the tweet above says, Google estimates that about 1.6 percent of queries are affected by this “Panda refresh.”"
Original article: http://searchengineland.com/google-says-panda-update-is-rolling-out-now-116444