Hot Brainstem

A bit of background:

Akismet

Akismet checks your comments against the Akismet web service to see if they look like spam or not. You need a WordPress.com API key to use it. You can review the spam it catches under "Comments." To show off your Akismet stats just put <?php akismet_counter(); ?> in your template. See also: WP Stats plugin.

Version: 2.2.8, By Matt Mullenweg

All in One SEO Pack

Out-of-the-box SEO for your Wordpress blog. Options configuration panel | Donate | Support | Amazon Wishlist

Version: 1.6.6.1, By Michael Torbert

Automatic Timezone

Automatically sets the timezone offset for Daylight Savings Time.

Version: 1.7.1, By Otto

Better-Wiki-Link

This Plug-in links every [[text]] or [[alt.text|link]] with the the appropriate wiki-system. (Option-page in english, german, spanish, norway, portugues and hebrew)

Version: 1.7.0, By Bass-Blogger

BookLinker

Automate the creation of book links to IndieBound, Powells, Amazon, and WorldCat.

Version: 1.0, By Michael Hartford

Broken Link Checker

Checks your posts for broken links and missing images and notifies you on the dashboard if any are found.

Version: 0.7, By Janis Elsts

cforms

cformsII offers unparalleled flexibility in deploying contact forms across your blog. Features include: comprehensive SPAM protection, Ajax support, Backup & Restore, Multi-Recipients, Role Manager support, Database tracking and many more. Please see ____HISTORY.txt for what's new and current bugfixes.

Version: 10.6, By Oliver Seidel

Custom Taxonomies

Custom Taxonomies provides a full administrative interface for creating and using taxonomies beyond the standard Tags and Categories offered in the default WordPress installation.

Version: 1.2.4, By Brian Krausz

Email Spam Protection

Converts emails provided in the shortcode to urlencoded javascript. Based on email spam protection on Twitter's contact page. If you found the plugin helpful please rate it here. You may enable graceful Javascript degradation in the settings page. This will also escape emails used in comments if they use this shortcode. It will ONLY enable this shortcode for comments for security purposes.

Version: 1.2, By Adam Hunter

AVH Extended Categories Widgets

Replacement of the category widget to allow for greater customization of the category widget.

Version: 3.2.0.1, By Peter van der Does

Fidgetr

A themeable Flickr widget that can fetch pictures and comments and style them in a myriad of attractive ways.

Version: 1.3.3, By Paul Kehrer

Flickr Widget

A widget which will display your latest Flickr photos.

Version: 0.1, By Donncha O Caoimh

Flickrpress

Display Flickr items in the sidebar. Supports Flickr RSS, photostream, multiple photosets, favorites, filtering by tag and displaying random photos.

Version: 0.2.1, By Michael Tyson

Get Custom Field Values

Use widgets or template tags to easily retrieve and control the display of any custom field values/meta data for posts or pages.

Version: 3.0.1, By Scott Reilly

Google Analyticator

Adds the necessary JavaScript code to enable Google's Analytics. After enabling this plugin visit the settings page and enter your Google Analytics' UID and enable logging.

Version: 5.3.2, By Spiral Web Consulting

Google XML Sitemaps

This plugin will generate a sitemaps.org compatible sitemap of your WordPress blog which is supported by Ask.com, Google, MSN Search and YAHOO. Configuration Page

Version: 3.2, By Arne Brachhold

List Installed Plugins

Lists your currently installed and activated plugins. Plugins can be hidden form the list if desired. Options page allows you to set a page to display the list on, change the format, and configure other options. The plugin also features a customizable widget to display your plugins. The plugin is multi-lingual ready with much text already being translated using built in strings. To summarize; this plugin features as many customizations as you could possibly want for something seemingly so simple.

Version: 1.5.1, By Stephen Ingram

KB Advanced RSS Widget

Gives user complete control over how feeds are displayed.

Version: 2.8.02, By Adam R. Brown

Last.fm for Wordpress

Displays your recently listened tracks. Based on Pownce for Wordpress by Cavemonkey50.

Version: 1.3.3, By Ricardo González

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.

Version: 3.0a, By Andrew Charlton

Netflix-X2

A reimplementation of the original Albert Banks Netflix plugin, Netflix-X2 displays RSS content from your Netflix account.

Version: 1.2, By Eric VanBergen

NextGEN Gallery

A NextGENeration Photo gallery for the Web 2.0.

Version: 1.3.5, By Alex Rabe

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.

Version: 2.4.14, By Janis Elsts

Page Links To

Allows you to point WordPress pages or posts to a URL of your choosing. Good for setting up navigational links to non-WP sections of your site or to off-site resources.

Version: 2.3, By Mark Jaquith

Quick Flickr Widget

Display up to 20 of your latest Flickr submissions in your sidebar.

Version: 1.2.10, By Konstantin Kovshenin

Remote Database Backup

Enables remote backuping of your wordpress database.

Version: 1.00.1, By Binny V A

ShareThis

Let your visitors share a post/page with others. Supports e-mail and posting to social bookmarking sites. Configuration options are here. Questions on configuration, etc.? Make sure to read the README.

Version: 3.2, By ShareThis

Simple Tags

Simple Tags : Extended Tagging for WordPress 2.3, 2.5, 2.6 and 2.7 ! Autocompletion, Suggested Tags, Tag Cloud Widgets, Related Posts, Mass edit tags !

Version: 1.6.6, By Amaury BALMER

Twitter for Wordpress

Displays your public Twitter messages for all to read. Based on Pownce for Wordpress by Cavemonkey50.

Version: 1.9.7, By Ricardo González

Twitter Widget Pro

A widget that properly handles twitter feeds, including @username, #hashtag, and link parsing. It can even display profile images for the users. Requires PHP5.

Version: 2.1.4, By Aaron D. Campbell

Wordpress Google Analytics Reports

This plugin helps to get Google Analytics reports overview to your dashboard using Google Analytics Data API.

Version: 1.0.6, By Imthiaz Rafiq

WordPress Database Backup

On-demand backup of your WordPress database. Navigate to Tools → Backup to get started.

Version: 2.2.2, By Austin Matzko

WP Favicon

Simply include a favicon.ico and a favicon.gif in your active theme.

Version: 0.1, By Jean-Michel Paris

WP-Polls

Adds an AJAX poll system to your WordPress blog. You can easily include a poll into your WordPress's blog post/page. WP-Polls is extremely customizable via templates and css styles and there are tons of options for you to choose to ensure that WP-Polls runs the way you wanted. It now supports multiple selection of answers.

Version: 2.50, By Lester 'GaMerZ' Chan

WP Security Scan

Perform security scan of WordPress installation.

Version: 2.7.1.2, By Michael Torbert

WPtouch iPhone Theme

A plugin which formats your site with a mobile theme for the Apple iPhone / iPod touch, Google Android and other touch-based smartphones.

Version: 1.9.5, By Dale Mugford & Duane Storey (BraveNewCode)