Advantages of link building are as follow :-

-> It ranks a page higher in search engine ranking.
-> More visitors are attracted to your website by link building.
-> The website will gain wider search engine exposure.
-> Reputation of your will get improved by link building.

Do follow link tells crawler or robot whether to index that particular page of the website or not.No follow is a HTML attribute which tells robot not to index that particular page.Every pages of the website have either do follow or no follow link.

SEO stands for Search Engine Optimization.SEO is the method which will make your website visible in search engines like Yahoo,Google, Bing etc. SEO comprises of two methods (1) On page method and (2) Off page method.

SMO (Search Media Optimization) is a great way to promote your website. SMO can be done by using social networking sites like twitter, facebook, stumbleupon etc.You can get potential customers for your business. Really SMO is booming in the marketing speedily.

You can increase traffic of the website by doing various off page SEO methods.Some of the off page SEO methods are listed below.

-> Social bookmarking
-> Article submission
-> Directory submission
-> Blog commenting
-> Forum posting
-> RSS