We all were busy looking at Google Penguin when it came out on April 24, 2012. Google Panda update also came around the same time.
Google’s Panda was introduced in February 2011. At the time it was intended to reduce rankings for low-quality sites that are low-value add for users, copy content from other websites, and sites that are not useful. Additionally, it increased ranking for sites with original content and information.
The subsequent updates such as Farmer Update went after “thin content” and useless content that repeated same information with no real value to the reader and had many links. Additionally, Panda went after the scrappers that republished others work. Since its debut Panda had 15 updates to date.
Penguin is an important algorithm change targeted at web spam. Again it is intended to reduce ranking for those web sites that do not follow Google’s guidelines. Penguin has impacted about 3.1 percent queries. Compare this with 12 percent impact of Panda 1.0 when it was introduced.
One thing is clear. Google will continue to target overly optimized web sites that do not provide useful content. Visitor engagement will play a major role in search rankings. Google will reward the high value content.