I consider some plugins mandatory, or more accurately the function of certain plugins to be indispensable. Plugins such as Askimet, All in One SEO Pack, and Google XML Sitemaps. The plugin, Featured Content Gallery, is essentially part of my blog theme so I consider that mandatory also.
Listed below are my Top 10 Favorite WordPress Plugins, in alphabetical order. My purpose is not to demonstrate how they work but to bring their existence to your attention. I have used all of these plugins for quite some time and have had them function correctly and consistently.
A highly customizable and user friendly plugin to create one or more alphabetical indexes of selected posts in your WordPress blog.
2. Broken Link Checker
Checks your blog for broken links and missing images and notifies you by email or on the dashboard if any are found.
3. Do Follow
The dofollow plugin for WordPress lets you remove the evil nofollow attribute from your comments.
Get Plugin: Do Follow
Author plugin site: Denis de Bernardy
Plugin use example: View source on this comment page. You will not find the
rel='nofollow' attribute inserted after www.congressionallotterypool.com.
Related article: How to not NoFollow
4. Exclude Pages
Provides a checkbox on the editing page which you can check to exclude pages from the primary navigation.
5. Tabbed Widgets
Place widgets into tabbed and accordion type interface.
6. Top 10
Count daily and total visits per post and display the most popular posts based on the number of views.
WP-DB-Backup allows you easily to backup your core WordPress database tables. You may also backup other tables in the same database. Backups can be delivered by email.
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.
Display your WordPress blog statistics. Ranging from general total statistics, to Most Commented Posts.
10. Yet Another Related Posts Plugin
Returns a list of related entries based on a unique algorithm for display on your blog and RSS feeds. A templating feature allows customization of the display.