"Organic" or "Natural" search engine optimization (SEO) is accomplished by optimizing your web pages and by increasing your "link popularity" by acquiring or paying for links that point to your web site. This gives you high rankings at the Search Engines for your chosen search terms. Both are same. So don't create confusion. Enjoy seo
Taken from http://www.bloomseo.com/what-is-natural-seo/ Taken from http://ezinearticles.com/?What-is-Organic-SEO?&id=2887341 I hope this helps
The Organic SEO method involves complete optimization of the company’s website and long term efforts toward top search engine results that are sustainable.
For me, "Natural SEO" is optimizing through the natural way. It means webmasters don't pay for links, or don't create links for themselves. They just let it flow naturally.
I also see oraganic SEO and natural SEO as almost the same. Organic SEO is doing work on your site and off your site in order to get free, targeted traffic. Natural SEO is the idea that you do it naturally. Google really like your backlinks to look natural, so if you were trying to optimize for the words "make money online", your anchor text should look natural. It would be better to say: "Clickbank is an affiliate program which you can utilise to make money online" That sounds natural. Rather than I went to the beach today CLICK HERE TO MAKE MONEY ONLINE and there were lots of people there. Basically, make your articles and anchor text and overall theme of the site flow naturally, and you will obtain organic SEO rankings.
organic seo or natural seo is same thing with different wordings. You build a good website and do conventional things to take your site up on the SERP with out paying a single cent is natural seo or organic seo to me. It takes time in conventional way without spamming. That's what Google like.The older your web page gets the more popular it becomes and in the process it anatomically get back links, visitors and ultimately the ranking that you ask. This is the central point of organic seo