Stefan M.

This plugin will set all Trackbacks and Pingbacks automatically to DoFollow Links.
The user comments will get after <code>X</code> comments from a unique mailaddress automatically DoFollow status. All other comments have NoFollow, except the Admin enable manually the DoFollow Status. The status which is set manual (if DoFollow or NoFollow) will overrides the automatical process. So, you have the control if someone gets sooner the DoFollow status, or never maybe. Of corse, the automatism can be disabled to do the hole work manually.
You get an support automatism, that you don’t need to check daily, but have the full control power.
Additonal this plugin validated all DoFollow URLs and will notice if there are broken links. Broken Links are very bad the Rank in the Search Engines (SEO).
Home Page of the Plugin: <a href="http://blog.murawski.ch/2010/09/wordpress-manual-dofollow-plugin/" title="IT Blögg - WordPress Manual DoFollow Plugin" rel="nofollow ugc">IT Blögg – WordPress Manual DoFollow Plugin</a>
If you have a wish for new functions, please contact me.

SMu Manual DoFollow

SMu DoFollow has many DoFollow Options (Manual or Automatism) and included URL Validator (Manual, WP-Cron or Cronjob).

For Games

This is a very simple but very helpful tool to help your bbpress makes internal links dofollow and external links nofollow.
We all know that on bbpress all links are nofollow. But many times, We have many internel links on bbpress topics or replies. For SEO purpose, We should make internal links dofollow and external links nofollow. So, I developed this little plugin.
This plugin is based on bbpress, please install bbpress first.
This plugin does not have any options to set. Just install it and everything’s ok

BBP DoFollow

A helpful tool to makes your bbpress internal links dofollow and external links nofollow.

SMu Manual DoFollow vs BBP DoFollow