Search engine optimization (Seo) is a process which affecting the visiblity of website or blog in search results.It target different kind of search results like image search,local search,video search etc.
It had only natural or organic traffic. Seo depends on what peoples type keywords on search engines.if your website post had good keywords or maximum traffic and had good quality content then it show top of search engines results(depends on what peoples type keywords on search engines).Big search engines like google,bing,yahoo have lots of traffic and attention. You must to have submit your blog or website on these search engines for organic traffic.
• How to submit your blog in search engines