What is organic traffic or unique visitors?
Organic or unique visitors a real human who use internet and visit your website. with direct with you website address like: http://www.youraddress.com or visit your site from search engine like Google, Yahoo, Bing , Ask , Msn etc.
Thats call organic traffic or unique visitors
What is Organic SEO or white Hat SEO ?
Search engine Optimization is the great and best way of Online advertisement , where you can get target visiters to your website . The Organic SEO and Exact working of search engine optimization call Organic SEO or White Hat SEO . And Second is Black hat to follow timprerily and shout working search engine optimization call black hat SEO .
Note: Try to avoid black hat Search Engine Optimization SEO because this process of work is not proper and work and its not follow the role of search engines , if you doesn't follow the rules of search engines the search engines banned your site .