Complete search-engine optimization (SEO) plugin for WordPress & BuddyPress
Was really happy with the plugin until I realized it steps on the blog name so you lose the header title for the entire site. This renders it completely useless. Developer said it'd be fixed 9 months ago but apparently not.
This plugin is the best available for site owners using BuddyPress. It works flawlessly with almost every BP core component and also supports WP pages, posts, categories, tags, archives and authors as you would expect.
+1 from me