Organic listings are on search engine results pages that appear because of their relevance to the search terms (keywords). In contrast, non-organic search results may include pay per click advertising, sponsored links and banner ads. Using organic SEO techniques help establish a website into a more permanent position.
Notify Search Engines of your Listing
When launching your website, the first thing you want to do is go to each major search engine and submit your domain name to them. Google, Yahoo, Bing, Excite, Linkedin, Citysearch...and more.
How it helps your Organic Listing
Each of these submissions will count as a high rank reference for your website. Also, according to your website content, each search engine will enhance your listing according to keywords on your pages.
What it takes to be in the top search results
The best way to optimize your search listings on major engines is by creating literature on your web site that will contain words a customer would type to find you. Search engines provide spyders that speed-read your website and links to other pages for it to read. These spyders will then create a list of keywords found in it's readings. Depending on how often a keyword is mentioned will create better results.
Time is of the essence, Organic listings is not worth the wait.
Downside to organic listings is it takes time for each search engine to promote your site. I highly recommend that you use alternative advertising to drive business to a site until it is listed organically in the search engine results.