Google periodically releases algorithm updates like Panda and Penguin to improve search quality by lowering the ranks of low-quality, thin, or spammy websites and prioritizing higher-quality sites with original content. The Panda update targets sites with low-value content farms, while combating its effects involves focusing on high-quality, unique content. Both Panda and Penguin aim to resolve issues around low-quality sites in search results.

1. Google Panda and Penguin
Updates

2. Introduction
 Google panda
 Google update
 How to combat Google panda updates
 Google’s panda and penguins

3. Google panda
 Google Panda is aimed to lower the rank of "low-quality
sites" or "thin sites "and return higher-quality
sites near the top of the search results.

4. Google panda updates

5. How to combat Google panda
updates
 Originally dubbed the Farmer Update by search
engine land, Google’s latest algorithm shake-up
was clearly targeted to resolve many of the
issues with low-value content farms invading the
search results.

6. Google panda and Google
penguin

7. Google panda V/S Google
penguin

8. Google panda and Google
penguin