If you can't measure it, it doesn't exist!

This simple to use tool helps you build forms to capture leads on your wordpress site. If you're just starting out, I highly recommend this.

Quite possibly the best way to protect your blog from comment and trackback spam

Love this! Just switched over from Disqus comments to Facebook Comments for Wordpress - when people comment on my sites it posts directly to their facebook profile (very similar to them sharing the link). After just a couple of weeks site traffic is ramping way up! The downside is that it conflicts with DiggDigg

This is a quick easy way to backup your Wordpress Site.

I've tried several "related post" plugins and this one is the best I've used.

Want to "Get Found on Google?" Then this plugin is a must.

If you want to make it easy for people to share your posts, then this plugin is awesome. Very flexible and easy to setup.

Super classy and easy to set up social share bar.

WPtouch automatically transforms your WordPress blog into an iPhone application-style theme.

PrintFriendly & PDF optimizes your pages for print. Help your readers save paper and ink, plus enjoy your content in printed form.

Backup entire Site and MySQL Database

Automatically optimizes your WordPress blog for Search Engines.

WP-Table Reloaded enables you to create and manage tables in your WP's admin area. No HTML knowledge is needed.

Add some tools for taxonomies : Terms suggestion, Mass Edit Terms, Auto link Terms, Ajax Autocompletion, Click Terms, Auto terms, Advanced manage term

Let's you put videos into the sidebar or footer via widgets.

A plugin that automatically checks your blog for broken links and missing images.

WP Customer Reviews allows your clients and visitors to leave reviews / testimonials of your services. Reviews are Microformat enabled (hReview or RDFa).