As long as you signed into your social bookmarking account, you will have the most recently updated version of all your bookmarks and other customizable information.
BSocialBookmarking enable users to collaboratively underline, highlight, and annotate an electronic text, in addition to providing a mechanism to write additional comments on the margins of the electronic document. BSocialBookmarking allows subscribers to become aware of new bookmarks as they saved, shared, and tagged by other users. It also helps to promote your sites by networking with other social bookmarkers and collaborating with each other.
Search engines will often list results from bookmarking sites. Therefore, if your site bookmarked, this is an extra opportunity to show up in search results.
BSocialBookmarking and social news allow targeting what you want to see. Links in BSocialBookmarking is the starting point for discussion and knowledge sharing. BSocialBookmarking uses a form of tagging, which allows users to mark websites they want to bookmark with a keyword similar to how hashtags work in Twitter.