Directory

Keyword = SEO plugin
Category
Listing
Platinum SEO Pack
Platinum SEO plugin is a fork of All in One SEO pack. It's not as widely known, but the Platinum version has many options All in one does not, and most people that try it give up AIO pretty quick...
http://techblissonline.com/platinum-seo-pack/ - detail
Google PR :
Headspace
Headspace is an all inclusive SEO plugin for metadata, titles, descriptions, etc.
http://urbangiraffe.com/plugins/headspace2/ - detail
Google PR :
SEO Booster Pro
Boost and track your search engine rankings with this very popular premium Wordpress SEO plugin
http://wp-dir.com/go/seoboosterpro - detail
Google PR :