ThumbGen

This plugin creates a function called thumbGen() that allows to show any image in the specified size. It saves all generated thumbs in a cache directory under uploads.

Akismet

Popular Comment Spam prevention plugin and service by Automattic

Updraft

The best backup plugin I’ve found for WP sites. Scheduling and remote storage options included.

GD Affiliate Center

GD Affiliate Center is plugin for managing ads from different affiliates, displaying ads on the website, tracking views and clicks for many types types of banner ads, text ads or full code ads similar to Google Ads.

Plugin allows management of as many affiliates as you want. You can review basic statistics including impressions, clicks or conversion rates for each one, manage ads and control integration in your website change status and review data for each affiliate.

Plugin allows you to ad banners and text ads on your blog and plugin will handle rendering of ads and simplify changes, track impressions and clicks.

Hikari Category Permalink

One of these permalink structure tags is %category%. By default, WordPress always use the category with lowest ID, making %category% impractical for SEO optimization.

Hikari Category Permalink allows post authors to choose among each post’s categories, which of them is used in that post permalink, giving much more flexibility and power to permalinks.

SlideNote

SlideNote is a customizable, flexible jQuery plugin that makes it easy to display sliding notifications on your website or in your web application.

New2WP Witter Twidget

Sometimes you just need a basic widget that isn’t all packed with crazy options and included files. This plugin comes packaged as basic as you can get with no bells and whistles or anything useless. Just the bare essentials for doing what you need to do.

Now you can display your latest Twitter updates in your sidebar, and not have a ton of overhead or extra stuff slowing your site down.

PollDaddy

One of the best WordPress poll plugins available. Easy to setup and use, and has a built-in post ratings feature for posts and comments.

WordPress Font Uploader

Use any font anywhere on your WordPress site. This plugin makes it really easy to manage all of your custom fonts, and does it the right way, and is %100 cross browser compatable.

Register Plus Redux

Register Plus Redux enables the user registration process to be customized in any way, big or small. Is there another field you want users to fill out when registering? Do you want to change the message your users receive after they register? Do you want users to have to verify their email address is legitimate? Do you want to queue up new users to be approved or denied by an administrator? Register Plus Redux can do all that and more.

Redux is a fork of Register Plus which was abandoned by original developer, skullbit, sometime after September, 2008 following the release of Register Plus 3.5.1. As of September, 2009 skullbit’s website was undergoing maintenance. Several bugs have been reported to the Register Plus plugin forum since that time, to resolve these bugs and continue development the Redux fork was created. The list of new features in Redux is steadily eclipsing the original.