Say you have linked to a particular URL a lot of times in numerous posts on your blog; it would be hard to track down all those posts and insert the nofollow attribute individually; when that's the case, is there a way we can do a mass-nofollow to the URL in question?
I'm using All-in-one SEO plugin, but don't see the nofollow option. Would like to check out other nofollow plugins - anyone in particular you'd recommend?
Try the plugin mentioned in this post - http://www.lost-in-code.com/platforms/wordpress/nofollow-links-in-wordpress-posts/ I have not tried it actually but it appears to me that that's the plugin you are looking for after tweaking keywords as my search queries just to land on related results.
Not really, I'm looking for something that can apply nofollow to the URLs already present on published posts.
Oppss.. Yeah, I see your point. Anyways, here's another that I can't be wrong. For alternative tools with related purpose, check this - http://www.vinatips.com/top-10-wordpress-nofollow-plugins-to-get-higher-page-rank
I'm afraid that doesn't fix it either; looks like it would change everything into nofollow...whereas I would like some flexibility as to where I want it applied.