I’ve built a fair few WordPress sites over the years, these plugins are my firm favorites across my sites. Most of these are utility plugins that provide an enhanced and / or new feature set to my installations.
WP Greet Box
Welcome your visitors
Display a different greeting message to your visitor depending on which site they are coming from.
Kill all SPAM track backs
Globally disables trackbacks to cut down on spam. Very, very few people legitimately use trackbacks and spammers love them, so it’s worthy tradeoff.
Google XML Sitemaps
Automatic Sitemap file generator for better search engine visibility
This well known plugin will generate a special XML sitemap which will help search engines like Google, Yahoo, Bing and Ask.com to better index your blog.
Log 404 errors on your site
Logs and shows all 404 errors to a convenient window on the Dashboard allowing you to spot incorrect links and other errors easily.
Livefyre Realtime Comments
Real time comments system for WP
Implements livefyre realtime comments for WordPress, the best external comment system I’ve found, even with Akismet switched on SPAM was a bit of an issue for me. Superb support in my experience, also has a fairly speedy loading time. It has a brilliant array of features including, SSO – Single Sign-on support, threaded comments (that are also backed up to your local copy of WordPress), comment mentions (similar to Twitter mentions), Facebook & Twitter integration to mention a few.
Rescue your visitors from 404 errors
Rescue your viewers from site errors! When content cannot be found, Smart 404 will use the current URL to attempt to find matching content, and redirect to it automatically. Smart 404 also supplies template tags which provide a list of suggestions, for use on a 404.php template page if matching content can’t be immediately discovered.
Pretty post navigation
Adds a more advanced paging navigation to your WordPress blog
Author / Site: Lester ‘GaMerZ’ Chan & scribu | Visit plugin site