An easy to install plugin with simple, but effective parameters. This is as far as I know the only working nofollow extension for Joomla 1.5

It would still be nice to be able to add nofollow to individual articles on the fly, perhaps something the developer can work on for future versions.

I've experimented with virtually all of the social bookmarking extensions, and this one comes out on top. No need to use it in a module, just set it to display at the top or bottom of each article, include or exclude it from front page. Also the capability to add many more social sites, and customize graphics and CSS.
Thanks to the developers.

Took less than 5 minutes to install and get up and running. Gives total control over the styling enabling seamless integration with your site's style.

Easy to install and effective, thanks.

This works brilliantly.
To get it to work with SmartSEF, disable SmartSEF, and in global configuration disable SEF, mod rewrite, and suffix to URLs. Do all your linking, and when you are finished just go back and enable everything again, and you'll have SEF URLs.