Social bookmarking is one of the most exciting features of Web 2.0 technology. Web sites that make it possible to use the social bookmarking feature are called Social-bookmarking sites. These Web sites allow users to store, tag, and share links among friends and others who have similar interests across the Internet. In addition, users can access their favourite links from any computer, at anywhere and in any place.
Although most social-bookmarking sites are free to use, people are required to register before they can start bookmarking. TechSling, like many other modern Web sites today, is also taking advantage of this technology by providing links to Bookmark and Share our articles with others through by placing a social bookmarking link at the bottom of every article (see picture above). You can therefore take advantage of this amazing feature by simply clicking on one of these links to add to the list of interesting articles you want to save for future reference or share with others.
Below are links to some of the most popular social bookmarking sites on the Internet today. You can click on any of the links to either register or get more information.
Del.icio.us
Digg
StumbleUpon
Talking Point
What is your favourite social-bookmarking site and why?

You also get a backlink from the social bookmarking site to your website, which helps to boost your popularity in the eyes of the search engines. My favorite is SU, StumbleUpon is the best way to discover great websites, videos, photos, blogs and more.
How do we use these backlinks?
There is lots of social bookmarking site online today, but only the popular one above can send traffic to your site. One of my favorite social bookmarking that is not in the list above is Mix.
Social bookmarking is considered and included as one of the most effective techniques to increase traffic by bloggers and website owners. There are also many social bookmarking sites so its safer to choose the right site.