1.All in One SEO Pack

Automatically optimizes your Wordpress blog for Search Engines (Search Engine Optimization).

2.Platinum SEO Pack

Platinum SEO Plugin offers Complete onsite SEO solution for your Wordpress blog.Platinum SEO Plugin offers all the functionalities of All In One SEO plugin.

3.SEO Smart Links

SEO Smart Links provides automatic SEO benefits for your site in addition to custom keyword lists, nofollow and much more.

4.HeadSpace2 SEO

Controls almost every aspect of your site’s meta-data, including advanced tagging, Analytics, and dozens of plugins. The best WordPress SEO solution!

5.SEO Friendly Images

SEO Friendly Images automatically adds alt and title attributes to all your images. Improves traffic from search results and makes the tags w3c/xHTML

6.Google XML Sitemaps

This plugin will create a Google sitemaps compliant XML-Sitemap of your WordPress blog.Adds CAPTCHA anti-spam methods to WordPress on the comment form, registration form, or both.

7.Robots Meta

This plugin makes it easy to add the appropriate meta robots tags to your pages, disable unused archives, nofollow unnecessary links.