start here : http://en.wikipedia.org/wiki/Search_engine_optimization then read this: http://www.seomoz.org/article/beginners-guide-to-search-engine-optimization good luck
we need seo its is a procedure or a principle in helping a certain website increases its traffic, improving its page rank and giving your website more chances of getting the attention of the researchers and not only that i surely increases the amount of visitors to a web site by ranking high in the search results of a search engine. The higher a web site ranks in the results of a search, the greater the chance that site will be visited by a user.
We need SEO to promote our website to the people who are searching for their requirements. SEO helps you to optimize and index your website in the first page of the Search Engines. For example, if you are doing a business in clothing and you have develop a website for your business. If a user looking for buy a wholesale clothes from any manufacturer or retailer, then he will search in the search engines. At this time, if your website is available in the first page that makes the person to look your website and knows the clothing product available in your business. This makes the person to do business with you. Thus SEO not only bring traffic to your website but also changes the normal visitor to a potential customer. So that we need SEO
To understand why SEO (search engine optimization) is important, you need to know what SEO does for a website. If you needed to hire a new manager for your office you would let people know about the opening by advertising. An ad in the paper would include the positions’ title, job description, and how to contact you. It might also state how not to contact you (i.e., no phone calls). Meta data and other codes provide similar information to robots including titles, descriptions, and instructions on how and what to read on a webpage. A robot is what search engines (and other information gathering companies) use to find your site, analyze it, and then decide what to do with it (ignore it, ban it, or index it). Think of SEO as advertising your site to search engines. If robots do not know about you, like what they see, or cannot understand what you are saying, you will not get search engine “air time.†Robots – Make Them Your Friends The Internet search engine process is not run by people. It is run by robots (spiders, webcrawlers, worms, and webants) that (hopefully) visit your site and try to understand and index it. If your site is not indexed, it will not show up in search engines. Period. A site with good SEO attracts robots and provides instructions, descriptions, and content that robots can understand, analyze, and assign relevance to. A site with no, or poor SEO will either get ignored, or worse – tagged as spam or blacklisted.
increase for sell we need all times SEO..because by SEO gives website traffic-good customer-sell product-get lot of profit..
Read here: http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35291 SEO represent us well in search engines and help us to grow in online business. It is the way you dress up your blog/website as a sales representative of your products and services.
seo is internet marketing which raise to reliability for worth of business and we can see any good site according our need it show in organic page top ten site.
With SEO works only your website will get publicity. If your website is really unknown to the rest of the world , what is the use of your website?