Here I’m going to list my favourite WordPress plugins.
Multi Keyword Statistics
For using the plugin, read the Multi Keyword Statistics Instruction Page. The multi-keyword-statistics-Plugin checks the content of a post or a page for keyword-density (single words and optionally 2- and 3-word phrases; for each the 1-10 most commonly used can be displayed). It can update its informations automatically while the author is writing his content in a variable interval (every 1-10 seconds) or manually by clicking on a button. The script comes with english and german stopwords, which optionally can be filtered out before calculating the keyword-densities. Moreover the commonest keywords are extracted in a list as a meta-keyword suggestion. Based on this list a description can be created and automatically set.
All in One Adsense and YPN
Inserts Adsense or YPN code in to your blog posts. Ad position can be random or pre-defined.
All in One SEO Pack
Out-of-the-box SEO for your WordPress blog.
Contact Form 7
A contact form plugin. Simple and flexible.
Google XML Sitemaps
This plugin will generate a special XML sitemap which will help search engines like Google, Yahoo, Bing and Ask.com to better index your blog.
My Page Order
My Page Order allows you to set the order of pages through a drag and drop interface. The default method of setting the order page by page is extremely clumsy, especially with a large number of pages.
One Click Plugin Updater
Upgrade plugins with a single click, install new plugins or themes from an URL or by uploading a file, see which plugins have update notifications enabled, control how often WordPress checks for updates, and more.
Automatically creates a virtual robots.txt file for your blog.
Integrates with Ping.fm’s Custom URL feature to collect pings and post them to your blog. By default, status updates are posted to a sidebar widget and blog/micro-blog entries become full-blown WordPress posts. Many other options are configurable.
SEO Smart Links
SEO Smart Links provides automatic SEO benefits for your site in addition to custom keyword lists, nofollow and much more.
WP Security Scan
Perform security scan of WordPress installation.
WP Simple Paypal Shopping cart
Simple WordPress Shopping Cart Plugin, very easy to use and great for selling products and services from your blog!