GoFuckYourself.com - Adult Webmaster Forum - Hey bloggers, do you use wordpress? 50+ tools to make life easier.

404 Notifier - Gives you a log of all your 404 errors.

Admin Dropdown Menus - Turn your messy admin menus into clean dropdown menus.

Admin Panel Comment Reply - Adds a 'reply to comment' option in the comments section of the admin area.

Ajax Spell Checker - Uses a combination of dictionaries to check your posts.

Auto-hyperlink URLs - Gives you several options for having URLs automatically turn in to hyperlinks.

AWSOM Pixgallery - Designed to allow artists and webcomic creators to create a portfolio of their artwork.

Batch Categories - Adds a page to the category management, showing all the posts that belong to a category making it easier to add to another category.

Custom Admin Menu - Allows you to rename, hide or move just about anything in the admin area.

Custom Write Panel - Lets you customize the Write panel of WordPress. Hide things you don't need such as Post Password and add things you may need.

Dashbar - Let admins have access while working in the frontend of the blog without having multiple windows open.

Dashboard Editor - Ever wanted to change the Dashboard to be more useful? This is the plugin you need.

DashNote - Adds a post-it note feature to the dashboard to jot down notes to yourself.

Digital Fingerprint - Adds a digital fingerprint to your posts so you can search the web to see if your content has been scraped.

Domain Mirror - Allows one install to be accessed from multiple domain. This will change the name and URLs based on the address people access it with.

Download Counter - Counts and tracks the downloads of all your files.

Email Users - This plugin allows you to mail registered users on your blog based on their role.

Enforce WWW Preference - Provides 301 redirects to queries with /index.php and enforces your use or non-use of www to make sure your search engine indexing is uniform.

Excerpt Editor - Gives you more control over the excerpts such as length and auto creation.

FeedBurner FeedSmith - Make sure all your RSS feed sbscribers get counted along with the ones signed up via FeedBurner.

Fix Database - Will check your database for errors and attempt to fix them.

Genki Announcement - Allows you to add an announcement before your first post without editing your themes, can even run on a timer.

Genki Pre-Publish Reminder - Forget to set your categories before you publish? Write yourself a reminder!

Google Analyticator - Inserts Google Analytics on every page.

Google Sitemaps Generator - Will create a Google compliant sitemap of your blog.

GT Post Approval - Adds Approve and Reject buttons to the admin view on all posts.

Instant Update - Will handle the tedious chore of upgrading your WP install with just one-click.

Just Unzip - Upload a zip folder from the Write page; this plugin unzips the contents and associates them with the current post.

Khanh’s Instant Notepad (KIN) - Allows you to jot notes to yourself on a notepad.

Leprakhauns Word Count - Adds a Java powered word counter to your editing page.

Mass Post Manager - Allows you to move or delete all the posts in a category at once.

Mutliply - Allows you to control multiple blogs from one administrator.

NextGEN Gallery - Adds an image gallery to your control panel and can even add a flash gallery.

OneClick Install - Adds an extremely powerful uploader and installer for plugins and themes to WordPress, eliminates the need to unzip or FTP!

Page Link Manager - Allows you to easily rearrange pages, hide them, and move them at will.

Permacop - Allows you to redirect any URL to another.

Post2Page - Write a post that should really be on permanent display? Turn it in to a page with this plugin and have it handle the URL redirects to boot.

PlugInstaller - Point this plugin to a new plugin you want on the web, it takes care of obtaining it, uploading it and unpacking it.

podPress - Numerous features for bloggers wishing to add podcasts to their WordPress install. Previews, RSS feeds, adding cast to posts, and many, many more.

Search and Replace - Search all your posts at once for specified text, quickly replace it.

Share This - Adds multiple social bookmarking links and an e-mail-this function in one handy button.

Simple Pop-up Images - Add a thumbnail image to your post; when the user clicks on it, they get a larger pop-up of the picture.

Simple Tagging - Simplifies the tagging process to drop down menus, can import from your current tagging plugins.

Site Unavailable - Puts up a customizable message while your site is down, but still allowing admins to login.

Throttle - Monitors your bandwidth and limits non-essential items during heavy load times.

Wikipedia-NoFollow - A plugin to add nofollow to links you give to Wikipedia pages. (In response to their new nofollow rule on outgoing links.)

WordPress Mobile Edition - Strips your blog down for easy reading on phones and PDAs.

WordTube - Why use YouTube when you can host and stream your videos as you please? Includes a flash player.

WP Grins - Adds clickable smilies to both the administration area and comments section at once.

WPAds - Add rotating banner and text ads to any position you define in your blog.

WP-Custom Login - Allows you to modify the user login page logo to an image of your choice to allow you to brand your site more completely.

WP- DBManager - Gives you the power to optimize the database, back it up, restore, delete the backup database , drop emptied tables and run selected queries.

WP-phpMyAdmin - Gives you quick access to your PHP databases directly from the WP admin area without haveing to login to phpMyAdmin. Very handy.

WP Plugins Tracker - Will verify all of your plugins are the latest version by checking them against the wp-plugins-db.org database.

WP Super Edit - Gives you more control over the Visual editor including emoticons, layers, style attributes and more.

WP-Table - Allows you to add a table directly in the Visual mode or import from a spreadsheet.

Taken from http://mashable.com/2007/07/26/wordpress-admin-plugins/. :thumbsup