Just like link directories, you can get a backlink through Social Bookmarking Websites. Getting backlinks through social bookmarking is a lot easier than getting it through link directories. Social bookmarking sites are the ones that allow you to bookmark your favorite links socially, in a manner that they are visible to others visiting the site. Most of these sites allow other users to rate a link submitted by others and if your link can make the homepage of the site through user ratings, you can get tons of traffic from these sites, a huge exposure and a high PR backlink. While submitting your site to social bookmarking sites, make sure your submissions don't look like spam.
Here is a list of top social bookmarking sites
First submit to these top social bookmarking sites, then there are others too. If you want to suggest a social bookmark to this list, please do so by commenting below.