Impact of backlinks in Search Engine Optimization
Backlinks are the incoming links to a website. They are also called incoming links.Easy.But what is the impact of search engine optimization.
Backlinks tell us how popular the website or a web page is, the page rank of the website in the search engines like Google, Yahoo, MSN, Ask etc.Another effective way to improve your page rank is exchanging of Links with other websites, obviously having a good page rank, but in some cases you have to pay someone to place link to you in his website.
Some other ways by which you can improve your page rank, is to use your signature in blogs, forums.But the best way and the long lasting way, is to write, good, quality, content by this way visitors can find you easily, and these links are called the natural links, natural links are much more valuable comparing to any other links, as they are harder to get.
Apart from these links, there are many links which play vital role in Search Engine Optimization.
Authority Links: -Authority links are links that are placed within your website content that come from trusted websites that are highly rank
Directory Links: - A link on or within a Directory site, generally placed in a relevant category making it easy for a site user to find your listing or a search engine spider to find your link.
One way link: - One way link building tips are essential if you want get both traffic and higher page ranks of your site of blog.
Three way link: - Three Way Linking Building (site X = site Y = site Z = site X) is a particular form of reciprocal link building. The effort of this way linking Building technique is to generate additional natural links in the eyes of major search engines. 
Sitewide Links: - Sitewide links are links that are present on every page of a site. These links are often placed in the footer or sidebar of a site but they can be present anywhere.
Press Release Links: - Press releases can bring you first-page visibility for your keywords very quickly. Sometimes, you can take over multiple spots on the first page of any Search Engines for your keywords.
Social Media Links or Social Bookmarking Links: - Links on social media do help. Not only is digg submissions actually ranking for results much like wikipedia does not but it also draw’s a ton of traffic to your site. Leverage social media to your favore and you seo efforts will come full circle