Link Building is important to getting improved rankings in the search engines and social bookmarking submission is one of the painless ways to gain a fast stream of backlinks to total about every content that you build because you have total command over the bookmarks that you build.
By using social bookmarking submission as a link building strategy you can make a major number of backlinks to all pieces of content you bookmark but in order to make the try appropriate, you need to confirm that the bookmark facts such as the title, description and tags are optimized for SEO end.
If your content has a title, it doesn't have to be the same as the title you use for the bookmarking. Involve your keywords prominently makes the bookmark better relevant and thus gives it large weight in the search engines.