Spin Rewriter 9 rewrites content on paragraph, word and sentence level. It also turns sentences around and makes sure that only appropriate synonyms are used. Aaron added a special ARTICLE GENERATING ALGORITHM to Spin Rewriter 9.0. This algorithm makes sure that the generated articles are even more unique, and even more readable — if that was even possible!

Google is getting VERY good at catching spun content so you'd better be talented at manual spins. If they DO catch you, of course they'll spank you... and hard. So anything you use spun content on is inherently AT RISK. Worse yet... Google gets better at finding spun/poor content every year. So in the longrun you're screwed. I'd weight your other options and see if you couldn't find a cheaper source for manually hand written content.
Anyone will can this, all you want is a fabulous computer and the flexibility to sequence a post title together. You can generate original article content and submit them to story lookup directories and receive paid for. You possess to apply to these web pages and may or may never get transformed down. If you should materialize to receive transformed down subsequently just hold plugging apart until you obtain person to "work with" you.
Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.
He saw a trainer nearby and asked why these animals just stood there and made no attempt to get away. “Well,” trainer said, “when they are very young and much smaller we use the same size rope to tie them and, at that age, it’s enough to hold them. As they grow up, they are conditioned to believe they cannot break away. They believe the rope can still hold them, so they never try to break free.”