how Google Algorithm update benefit your site

Today lots of business use digital marketing technology which they easily make their recognition in the market, For this work Digital marketing firm help them. They use their work new new plan which they make their position in search engine.
Google makes some algos which help digital marketing work these algo tell that Why your Sites are Slow Rank. 
Recently google panda update that Why your Sites are Slow Rank:
1.The main reason is thin content, Google does not rank your website if you Copying and pasting content with other site and use own site it never give you position in SERP because in thin content involves no original content:
2.Low-quality content
3.Duplicate text.
4.Unhelpful content

If you follow all the algo rules in your site and work all the pages you surely get rank in google and you also always change your strategy with Google Panda updates for a better result.