This page contains JavaScript code to add buttons to a page to ease its social bookmarking.
One adds the following to a page:
<script type="text/javascript" src="{location of the script}/social-bookmarking.js"></script>
and gets the following set of small clickable icons:
Here's the version automatically generated (which should be identical to the version right above):
You can download a Zip file containing the code. You will need to edit the image_dir variable in social-bookmarking.js.
The code is based on Cal Evans's WP-Notable WordPress extension.