please tell me about google panda?

[Mohit]

Whai is google panda and how it's work in seo

[Professor Pixel]

According to Wikipedia: It's their search results ranking algorithm.

Translation: It's their program that decides which websites are worth showing you and which ones should be first in the list.

It is an older algorithm though, the 2011 version. It was updated with their Penguin algorithm in 2012, which can decide more accurately if a site is a fake. It's all complicated.

http://en.wikipedia.org/wiki/Google_Panda
http://en.wikipedia.org/wiki/Google_Penguin

[Jake]

The search experts describe it as a site quality filter that is periodically run to identify low quality sites that should not be given good search rank positions. Reports have shown article library sites to be one of the types most effected.
In dealing with it, some sites have removed their lowest quality content and have adopted a policy to create only quality original content of at least 500 words in length.

There are a number of informative discussions at seomoz

http://moz.com/blog/why-i-love-google-panda

[Jaquetta]

This info is from Wikipedia:

Google Panda is a change to Google's search results ranking algorithm that was first released in February 2011. The change aimed to lower the rank of "low-quality sites" or "thin sites",[1] and return higher-quality sites near the top of the search results. CNET reported a surge in the rankings of news websites and social networking sites, and a drop in rankings for sites containing large amounts of advertising.[2] This change reportedly affected the rankings of almost 12 percent of all search results.[3] Soon after the Panda rollout, many websites, including Google's webmaster forum, became filled with complaints of scrapers/copyright infringers getting better rankings than sites with original content. At one point, Google publicly asked for data points[4] to help detect scrapers better. Google's Panda has received several updates since the original rollout in February 2011, and the effect went global in April 2011. To help affected publishers, Google published an advisory on its blog,[5] thus giving some direction for self-evaluation of a website's quality. Google has provided a list of 23 bullet points on its blog answering the question of "What counts as a high-quality site?" that is supposed to help webmasters "step into Google's mindset".[6]

[leaf_autumn16]

Panda is an algorithm that scrapes out website wit low quality contents. It affects your website performance. Those who are still into content auto generation, content farming and other black hat seo will drop its rankings on Google, Yahoo, and Bing.

[RAVI]

Google Panda is a change to Google's search results ranking algorithm that was first released in February 2011. The change aimed to lower the rank of "low-quality sites" or "thin sites",[1] and return higher-quality sites near the top of the search results.