Platinum SEO Plugin for WordPress
They are many options to choose form if you want a SEO plugin for wordpress. I personally use Platinum SEO Pack.
In my humble opinion it is the best there is. With some of the best and most functional features this plugin does a fantastic job at helping you make your WordPress Blog Search Engine friendly. I see raves around the internet about All in one SEO Pack but Platinum SEO Pack has options that are not available in All in one SEO Pack. (Well at the time of writing this post, maybe they udpated by now.)
Some of it's Platinum SEO Pack Features
* Automatic 301 redirects for any permalink changes
* Canonical URLs
* Optimized Post and Page Titles for search engines
* Generates all SEO relevant META tags automatically
* Option to specify meta description and meta keywords tag for categories and tag pages.
* Option to turn off Page title or Post title rewrites for any particular post or page
* Helps you avoid duplicate content
* Lets you override any title and set any META description and META keywords, for any post or page
* Compatible with most other plugins, like Auto Meta, Ultimate Tag Warrior and others.However you may have to disable All in One SEO pack
* You don't have to fear changing permalinks. If you are not satisfied with the current permalink, change it through Settings'>Permalinks in your admin panel, without worrying about loss of Page rank or google penalty. Platinum SEO plugin will take care of issuing a 301 redirect to the new location. This is a new essential feature, not present in All in one SEO
* Add index, noindex, follow or nofollow, noodp, noydir, noarchive, nosnippet meta tags to any post/page.
Getting the best result form your SEO plugin still depends a bit on you. You have to use the right keyword, description and combination of options but Platinum SEO Pack is a great place to start?
What is your favorite SEO Plugin?