This plugin will allow you to add an “Bookmark this page on del.icio.us/digg/furl/newsvine/blinklist” link on you sidebar / posts / wherever.
Adds MyBlogLog widgets and member pages to your blog.
A simple plug-in that allows readers to share the title and permalink for a post through a number of online services.
Makes available a widget to display your recent links tagged with delicious.
del.icio.us cached++ displays a list of the latest bookmarks on a del.icio.us account, from its RSS feed, keeping the feed cached in the database.