I guess many of them already explained in much better way about Search Engine Optimization. It is just about publishing our site and stuffs so that it helps to appears them on different search engines. 

AKP wrote:

I guess many of them already explained in much better way about Search Engine Optimization. It is just about publishing our site and stuffs so that it helps to appears them on different search engines. 

 

Additionally, SE optimization ensures  a good page rank in the Search engines. Using Key words play a vital role in SEO.

mohan manohar wrote:

SEO is all about informing search engines about yours articles or web presence. Search engines indexes websites through automation technologies due to existence of million of website all over. Search engines are not humans so they look at website in the form of meta tag, tag, headings, categories, which all are there while you write articles of boddunan,  there are more complex form to it like creating sitemap, then submitting it to different webmaster accounts, in simple it is in a way inform search engines about contents of article and website as search engines could not read entire article. Then they categories yours specific article and then send to search results to specific categories by users while searching on Google, Bing and  so on. 

I could not get webmaster accounts and can you get me a brief outlook sitemaps uncle.

Just search Google Webmaster tools on Google and sign with g mail account and then add site and then there were many ways of verification of site by Google, Bing, Yandex and others. One is meta tag, html file upload, Google Analytics integration, DNS authentication, which ever you choose. If you have blogspot account then go for meta tag verification and if you have own hosting, then you could go for html file upload, DSN authentication or meta tag, then Google will withing seconds authenticate that you are owner of yours site, then reach to webmaster tools and then search sitemap and add sitemap of yours blogger, wordpress or jumla site and slowly Google would crawl sites and show relevant search engine results. There are many other forms of advance use of GWT but these basics steps should be done in first in order to make your site visible. For Google Webmaster tools this is the link and for others just search on web search engines to find out more. 

https://www.google.co.in/webmasters/

And to add to What Mohan Ji said- do not make a haste on any of these actions or feel disappointed if the result says, "Site Not Found" Give them enough time as it's a long term process. But once you get listed there is no stopping.