Re-writing the article many time to make more article from a single article is call the article spinning. Here is a good article on this topic & you should read it- http://bit.ly/fg6uFH
No, there is no such case.. Google check the content with its stored data of other websites and it find it duplicate then it may not index your articles. See we only assume and say what Google update. I have seen that Google also index duplicate content.. but for better performance, unique content were preferred. atleast 30-40% unique content would be okay.
You ca use this free article spinner.. but be careful while using any article spinner.. Check this article, there is link to download free article spinner- http://bit.ly/fg6uFH
Hi, I think article spinning could be explained as re-write PLR article according to SEO good practice for submission purpose. thanks,
If you spin your articles thoroughly, it will be considered as unique through Google's eyes. Spin your articles this way and you can use it multiple times: Spin your paragraphs 4 times Spin the sentences on each paragraph 4 times Spin the words in each spun sentences and paragraphs Time consuming I know, but this will produce thousands of articles that are unique thus giving you high quality results.