WP Onlywire Multisubmit
The Onlywire multi autosubmitter is a free Wordpress social bookmarking plugin. It can be installed easily on all Wordpress weblogs and allows you to submit all your posts to many different social bookmarking and networking websites, including Digg, Reddit, delicious and Mixx, through the Onlywire social bookmarking service automatically. Since it is, unlike most other Wordpress social bookmark plugins, a multi autosubmitter it will allow you to cycle through several Onlywire accounts on a random basis.
All in all Onlywire Multisubmit can greatly simplify your social bookmarking and networking habits and help you promote your weblog in a simple yet effective way.