The Social Bookmarks plugin for WordPress adds a list of XHTML compliant graphic links at the end of your posts and or pages that allow your visitors to easily submit them to a number of social bookmarking sites.
Furthermore, the plugin adds a section in the WordPress Dashboard that lets you customize it. You can enable/disable social bookmarking sites and exclude specific pages from the plugin.
What's new in this version:
Version 4.1.6 supports LinkedIn.