Alex King

NFCBC SEO Plugin Add-on is an administration tool for follow and nofollow comment moderation.
<a href="http://www.fob-marketing.de/marketing-seo-blog/nfcbc-seo-plugin-add-on.html" title="NFCBC SEO Plugin Add-on" rel="nofollow ugc">NFCBC SEO Plugin Add-on</a> requires a Follow-/Nofollow-Plugin like
<a href="http://www.fob-marketing.de/marketing-seo-blog/nfcbc-seo-light-the-light-version-of-nofollow-case-by-case.html" title="NFCBC SEO Light" rel="nofollow ugc">NFCBC SEO Light</a> or
<a href="http://www.fob-marketing.de/marketing-seo-blog/wordpress-nofollow-seo-plugin-nofollow-case-by-case.html" title="Nofollow Case by Case" rel="nofollow ugc">Nofollow Case by Case</a>.
It gives you the ability to modify the link a commenter left as their URL without removing the entire comment.
<h3>Usage</h3>
Click on the link in your comment e-mail notification or in the comment list (admin -> your comments) to let a follow link become nofollow or the nofollow link follow again.
<h3>Known Issues</h3>
Adding the link to the comment list requires jQuery, which is included in WordPress 2.2 and later.
An e-mail link for direct moderation might not work for everybody, too.

NFCBC SEO Plugin Add-on

NFCBC SEO Plugin Add-on is an administration tool for follow and nofollow comment moderation.

Skysa

Simply set the Twitter account you want users to follow; then, when they click the Twitter Follow button at the bottom of your site, they will start following your account on Twitter. You can optionally set to display your current followers count next to the Twitter follow button and also the language of the Twitter follow button text.
http://www.youtube.com/watch?v=Zj1uGXX2xrk&hd=1 
<a href="https://wordpress.org/extend/plugins/tags/skysa-apps" rel="ugc">More Skysa App plugins</a> -|||- <a href="https://wordpress.org/extend/plugins/skysa-official/" rel="ugc">Skysa App Bar Integration plugin</a>

Skysa Twitter Follow App

Allows your site visitors to follow your twitter account with one click, without leaving your sitet.

NFCBC SEO Plugin Add-on vs Skysa Twitter Follow App