Automatic Search Engine Optimization (SEO) out of the box for your wordpress blog. It is streamlined for some best practices for WordPress SEO.
Forget to put manually your links, just choose a word and a URL and this plugin will replace all matches in the posts of your blog. You can set the title of the link, target, rel and also you can know every moment how many times a word has been changed. In case the plugin finds more of once the same word in a post, it will only change the first one. This is to avoid black seo and inconveniences to the users.
SEO Title Tag makes is dead-easy to optimize the title tags across your WordPress-powered blog or website. Not just your posts, not just your home page, but any and every title tag on your site! If this plugin, along with a few hours of keyword research and copywriting of optimized titles, doesn’t make a significant impact on your search traffic, you’re doing something wrong!
This plugin helps you manage your search engine duplicate content, by setting your post page’s canonical to the permalink.
A freely positionable, AJAX-ishly collapsible, CSS styleable, fancy table of contents box for WordPress posts and pages.
Give yourself an SEO boost! This simple plugin will give you a customized, smart ‘Page Not Found(404)’ error message. It will automatically display links to relevant pages on your site, based on the words in the URL that was not found.
SEO Tag Cloud Widget displays the tag cloud in a SEO-friendly way, using a search engine optimized html markup. It looks the same as the default WordPress Cloud Tag, but with an optimized html markup. You can put it to your sidemenu.
This plugin displays a ‘tag cloud’ of all the people in your community who have contributed to our blog by commenting. The more comments someone has made on your blog the bigger and bolder their tag. Thus, it’s a tag cloud of community participants for your blog.
It is a robust plugin that enables commenters to sign up for e-mail notification of subsequent entries. The plugin includes a full-featured subscription manager that your commenters can use to unsubscribe to certain posts, block all notifications, or even change their notification e-mail address.
The Top Commentators Widget is a sidebar widget to show the top commentators in your WP site. Adapted from Show Top Commentators plugin at Personal Financial Advice, this widget is easier to manage via the control form (no need to edit the PHP file); additional options are also available to make it more flexible.
This plugin will visit the site of the comment author while they type their comment and retrieve a selection of their last blog posts, tweets or digg submissions which they can choose one from to include at the bottom of their comment when they click submit.
Adds a simple copyright notice at end of full text articles in your feed. A notice gets attached at the bottom of feed articles – "Copyright Year. BlogName. All Rights Reserved". The BlogName is linked to your blog url.
Instead of abiding by your feed preferences, WordPress will truncate your feed’s content anywhere you insert a <!–more–> tag. Full Text Feed undos this functionality, allowing your feeds to contain the full text regardless of <!–more–> usage.
By default, new visitors to your blog will see a small box above each post containing the words “If you’re new here, you may want to subscribe to my RSS feed. Thanks for visiting!” After 5 visits the message disappears. You can customize this message, its lifespan, and its location. New visitors will appreciate some context and background information about your site. This is your chance to offer them a special welcome and invite them to become permanent subscribers!
With the Subscribe-Remind plugin, some text will automatically be placed at the end of each of your posts inviting your readers to subscribe to your RSS feed. It’s an unobtrusive and effective way to turn visitors into subscribers.
Audio Player provides you with a simple way of inserting a stylish Flash mp3 player on your WordPress posts and pages.
When someone is referred from a search engine like Google, Yahoo, or WordPress’ own, the terms they search for are highlighted with this plugin.
This plugin allows you to easily display Flickr photos on your site. It supports user, set, favorite, group and community photostreams. The plugin is relatively easy to setup and configure via an options panel. It also has support for an image cache located on your server.
Lightbox 2 allows you to present images in a slick window, while darkening the rest of the page. It makes your site look professional, and adds very little to page load times. It does not require any browser plugins to work, and works on just about every web browser out there! When a browser doesn’t support java, the code fails gracefully.
Adds a more advanced paging navigation your WordPress blog.
Example: Pages (17):  2 3 4 » … Last »
This plugin will manage and rotate your Google Adsense and other ads on your WordPress blog.
Theme Test Drive WordPress plugin allows you to safely test drive any theme on your blog as administrator, while visitors still use the default one.
The text widget that comes with the wordpress does not allow you to include PHP code. This plugin adds a new widget called Samsrin PHP Widget, which will allow you to include PHP code, as well as plain text and HTML.
WP-DB-Backup allows you easily to backup your core WordPress database tables. You may also backup other tables in the same database.
Akismet checks your comments against the Akismet web service to see if they look like spam or not and lets you review the spam it catches under your blog’s "Comments" admin screen.
Simple Tags is the successor of Simple Tagging Plugin. It is perfect tool to manage perfeclty your WP 2.3, 2.5, 2.6, 2.7 and 2.8 tags
Extended Live Archive (ELA) is a cool AJAX application with which you can display a well-structured and multi-viewed archive navigator on your archive page. With the help of this navigator, visitors of your blog can surf all the articles on your blog easily.