Google Analyticator adds the necessary JavaScript code to enable Google Analytics logging on any WordPress blog. This eliminates the need to edit your template code to begin logging. Google Analyticator also includes several widgets for displaying Analytics data in the admin and on your blog. It includes a graph of the last 30 days of visitors, a summary of site usage, the top pages, the top referrers, and the top searches.

Pricing: Free
Requirements: WordPress 2.7+
Source: http://wordpress.org/extend/plugins/google-analyticator/

Shopp is an e-commerce plugin that adds a feature-rich online store to your WordPress-powered website or blog. Get your store up and running in minutes. Then, take it to the next level with the flexibility of Shopp’s customization tools that allow production studios and power users to tailor every aspect of the shopping experience.

Shopp looks and works like it was meant to be part of WordPress all along. With support for SSL security, transaction information is encrypted during processing and no credit card information is stored on your website to ensure your shoppers’ safety.

Pricing: Single ($55), Developer ($299)
Requirements: WordPress 2.8
Source: http://shopplugin.net/

WP Greet Box lets you show a different greeting message to your new visitors depending on their referrer url. For example, when a Digg user clicks through from Digg, they will see a message reminding them to digg your post if they like it.

You can also set a default greeting message for new visitors suggesting them to subscribe to your RSS feed. Having these targeted suggestions will help your blog increase exposure, loyal readership, and reader interaction. Best of all, this plugin is compatible with WPMU and various WordPress cache plugins.

Pricing: Free
Requirements: WordPress 2.6+
Source: http://wordpress.org/extend/plugins/wp-greet-box/

There is a new interesting plugin open source for WordPress, called MeeNews, a tool that lets you customize the layout of the template as you like, manage mailing lists, create newsletters with a pleasant style Html.

Its configuration is very easy and simple and does not require much knowledge of programming, plus you have a video demo and installation manuals in pdf format that will guide you during the installation and configuration. A newsletter that meets all the anti-spam requirements, complatible with these mail clients, e.g. Outlook, Thunderbird, Gmail, Hotmail, etc…

Pricing: Free
Requirements: WordPress 2.7+
Source: http://www.wp-newsletter.com/

It happens quite often that a blogger publishes posts or static pages on a regular basis which have the same structure. Think about for example a “picture of the day” daily post. With current wordpress state, we need to spend a lot of time doing copy/paste between posts instead of actually writing content.

Be happy because Vincent Prat has developed the Post Templates Plugin to maintain post templates and allow simple writing of regular posts.

Pricing: Free
Requirements: WordPress 2.7.1
Source: http://wordpress.org/extend/plugins/post-template/

WP System Health supports a comprehensive overview about your current WordPress installation in terms of internal states, PHP and Server environment. It adds a new Dashboard Widget at your Blog for Administrators only and is perfect to reduce your spend amount of time doing your service desk operations with non experienced blog user or customers.

This Dasboard widget requires a WordPress version equal or higher than 2.7 and a PHP version of 4.4.3 and higher. This Dashboard extension only displays some information but doesn’t change them nor provides any changing capabilities. It’s also limit to users that are member of the group “Administrator”. All other user won’t get this Widget in their Dashboard and the widget doesn’t collect any data in this case.

Pricing: Free
Requirements: WordPress 2.7+
Source: http://www.code-styling.de/english/development/wordpress-plugin…

Tweetable is a WordPress Plugin intended to help integrate Twitter into your blog. It can tweet your blog posts as they are published, shortening the URLs with either Tr.im or Is.gd and optionally including Google Analytics campaign tags. You can display your latest tweet(s) in your blog sidebar with a customizable widget, which can even display your follower count.

Tweetable adds functions that turn the WordPress admin into a twitter client. The Tweet screen lets you update your status and browse your friends’. The Track page let’s you save keywords to be searched so you can keep an eye on what Twitter as a whole is saying about a given topic. You can set the minimum user level required to access the menus if you would like to allow other authors access.

Pricing: Free
Requirements: WordPress 2.7+
Source: http://www.webmaster-source.com/tweetable-twitter-plugin-wordpress/

Platinum SEO Plugin is the ultimate wordpress SEO solution.Platinum SEO Plugin offers all the features of All in One SEO plugin plus more. Platinum provide an ultimate onsite SEO (search engine optimization) solution for wordpress blogs. If you are already using All In One SEO Pack, this plugin will automatically import all the settings, that you have defined using All in one SEO plugin. You can check out the features of Platinum SEO Plugin:

• Optimized Post and Page Titles for search engines
• Generates all SEO relevant META tags automatically
• Helps you avoid duplicate content
• Lets you override any title and set any META description and META keywords, for any post or page
• Compatible with most other plugins, like Auto Meta, Ultimate Tag Warrior and others.However you may have to disable All in One SEO pack
• You don’t have to fear changing permalinks. If you are not satisfied with the current permalink, change it through Settings–>Permalinks in your admin panel, without worrying about loss of Page rank or google penalty.Platinum SEO plugin will take care of issuing a 301 redirect to the new location.This is a new essential feature, not present in All in one SEO
• Add index, noindex, follow or nofollow, noarchive, nosnippet, noodp, noydir meta tags to any post/page.These options are not available in All in one SEO Pack.

Pricing: Free
Requirements: WordPress 1.5+
Source: http://wordpress.org/extend/plugins/platinum-seo-pack/

What Others Are Saying allows you to display the most recent post of your favourite blogs somewhere on your site. It utilises the RSS link field from the blogroll for each of your links. If the RSS link exists it attempts to get the last post from it. It then displays the most recent X number of posts depending on your settings. Each blog can have one post in the list.

Pricing: Free
Requirements: Wordpress 2.0.7+
Source: http://www.stuffbysarah.net/blog/wordpress-plugins/what-others-are-saying/

Google (XML) Sitemaps Generator plugin generates a XML-Sitemap compliant sitemap of your WordPress blog. This format is supported by Ask.com, Google, YAHOO and MSN Search.

Pricing: Free
Requirements: Wordpress 1.5+
Source: http://www.arnebrachhold.de/projects/wordpress-plugins/google-xml…

For the best results using FeedBurner with your self-hosted WordPress site, we recommend the FeedBurner FeedSmith plugin (originally authored by the awesome Steve Smith). The plugin will detect all ways to access your feed (e.g. http://www.yoursite.com/feed/ or http://www.yoursite.com/wp-rss2.php, etc.), and redirect them to your FeedBurner feed so you can (more…)

SEO Smart Links provides automatic SEO benefits for your site in addition to custom keyword lists, nofollow and much more. SEO Smart Links can automatically link keywords and phrases in your posts and comments with corresponding posts, pages, categories and tags on your blog.

Further SEO Smart links allows you to set up your own keywords and set of matching URLs. Finally SEO Smart links allows you to set nofollow attribute and open links in new window. Everything happens completely transparent, and you can edit the options from the administration settings panel.

Pricing: Free
Requirements: WordPress 2.7
Source: http://wordpress.org/extend/plugins/seo-automatic-links/