a nested spin (spin variations within spin variations).
This can potentially take very long if you want to do this properly, but
luckily there are some people who provide services like this. One
such service is my MaximumPLR.com where I provide you with new
super spinnable articles monthly. These are so highly spun that you
can create thousands of unique articles with them.
When you spin articles, words are usually transformed into their other
thesaurus equivalents, and the structure of individual sentences are
rearranged in such a way that it does not disrupt the original sense of
the articles. Additional words, phrases, or sentences are also included
to enhance the article structure.
With article content spinning, you can distribute as many
articles as you can all over the web without having to worry
about being reprimanded by search engines for publishing
duplicate content.
This is one of the biggest pros of using spun articles. You can literally
submit your articles to hundreds of article directories and blogs and
not get penalized by Google. This means that you will benefit a lot