A lightweight plugin that will add the submit buttons for Digg, Stumble, Del.icio.us, Slashdot, Twitter, Mixx, Dzone, Sphinn, Google, and Technorati to the bottom of posts. It can be configured to only show some of those options or all of them.
Let me know if you have something you would like it to do.
Enabled support for WP_PLUGIN_DIR (Issue #42)
Cleaned up execution overhead