My Flavor 5 SEO Plugin for WP 2012
WordPress SEO
In short, WordPress SEO help bloggers for the aspect of SEO. Generally, it help the users to optimization and write better content. In particular, to know what a focus keyword while writing post as well as make use of it. The other functions included Page Analysis, Technical WordPress Search Engine Optimization, Meta & Link Elements, RSS Optimization, XML Sitemaps and etc.
For more information, refer to this link here.
Google XML Sitemaps
Google XML Sitemaps definitely is one of the most basic and important SEO plugin. In short, this plugin will generate a special XML sitemap and ping to Google, Bing, Yahoo and Ask.com for every new post. As a result, it will help efficiently.
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All In One SEO Pack
I’ve been using All In One SEO Pack for more than 2 years. Basically, this plugin optimizes my posts for Search Engines(SEO) by Automatically optimizes my titles page and Generates META tags. In addition, this plugin support Google Analytic, Custom Post Types, Advanced Canonical URLs, Fine tune Page Navigational Links, built-in API, CMS-style WordPress installations, SEO Integration for WP e-Commerce sites and etc.
For More information, refer to this link
Smart 404
In brief, Smart 404 allow users to automatically redirect to your certain content from unhelpful 404 error. Basically, this plugin will perform a search from your posts, pages, tags and categories, using keywords from the requested. Consequently, redirect to that content if there’s a match.
For More information, refer to this link
SEO Smart Links
In short, SEO Smart Links provide automatic SEO benefits for your site. Generally, this plugin automatically link link keywords and phrases into the posts with corresponding pages, posts and tags. Therefore, it will enhance your blog posts SEO with interlinked. On the other hand, users can easily add affiliate links to other sites.
For More information, refer to this link