The most important one (in my opinion) is the all-in-one-seo pack plugin.

Other useful ones are:

Google Sitemap Generator
Sociable
Tweetmeme
Google Analytics for Wordpress
CF Forms
MaxBlogPress Ping Optimizer
Comment Luv
Sem-dofollow
Subscribe to Comments
Top Commentators Widget

Yeah I think it has to be Jeff Johnsons All In One Seo Pack

All-In-One-SEO-Pack, Top Commentator, Google sitemap generator, tweetmeme, etc...

I think it depends on the usage, depends on what you want on your blog, then only pick the right wordpress plugin.

Allinoneseo, my favorite plugin. It not only compatible with most plugins and themes, it constantly improving...

All in one SEO....easy to use.

The first section of this article lists some SEO specific plugins:

http://www.wealthydragon.com/blog/20...press-plugins/

Cheers,

Martin.

WP-Cache
WP Automatic Upgrade
Simple Tags

yeh alot stop working with the firefox updates, i had to update my pagerank addon, i'm using "SearchStatus"

I have used All in one seo and platinum seo, decided to stick with All in one.

All in one SEO is best

I don't think HeadSpace2 was mentioned. How do you guys feel about that one?

All In ONE Seo plugin just does the work.

Jeff Johson's all in SEO does it for me. Visit his blog to find out more.

I have use All in one SEO pack and Platinum SEO Pack , I think they are both good but Platinum has more features.

Here is the list that I always use on my blogs:

All in One SEO
Quick Adsense
Tagally (strong backlinks!)
Twitme
Sociable
XML Sitemap

This exact same question gets asked over and over and over... even right here. In the past 5 minutes I've seen it twice.

Go to Wordpress. Look at the plugins, see what is being downloaded the most, read the comments, visit the author page and see how it works. Pick one and install it then test it.

from the given list by you guys, i think all in one seo is the best. thanks

All-in-one is what i use and works well.