WordPress SEO Plugins
Premium – Infinite SEO by WPMU
Infinite SEO makes SEO easy, and even includes a setup wizard to help you get started. Just install, set your options, and customize. Infinite SEO also has an SEOmoz report panel built right in so you can keep track of how your rankings are doing.
FREE – Yoast WordPress SEO
WordPress E-Commerce Plugins
Premium – Easy Digital Downloads Extensions
FREE – Cart66
Another premium e-commerce plugin worth checking out is Cart66. This plugin includes Google Analytics, MailChimp and Gravity Forms integration as well as options to add “buy now” links to your social account, sell/host your own digital goods and more.
FREE – Easy Digital Downloads
Get the awesome Easy Digital Downloads plugin for free. There are even a handful of helpful extensions available on WordPress.org. This is a quick and professional way to add a payment gateway (with cart, discount options, and user data) for digital goods on your website.
FREE – WooCommerce
FREE – Crowdfunding
Crowdfunding by Astoundify is gaining momentum, and is a great way to garner funds from donors and investors. Designed for fundraising campaigns, this plugin supports various contributor levels and integrate seamlessly with PayPal & Easy Digital Downloads.
WordPress Post Rating Plugins
Premium – LoveIt Pro
This cute LoveIt plugin that allows users to “heart” your posts, pages, portfolio items, etc. Each user can love something once and a notification will popup if they try to love it again. The plugin also enables you to track popular content and has a “most loved” widget.
FREE – WP Post Ratings
If you just want a traditional 5-star rating system, WP Post Ratings is a popular and well tested plugin that will get the job done. Readers can submit their vote for content, the plugin takes an average and then it displays the rating (however you can always upload a custom image).
WordPress Social Sharing Plugins
Premium – ATT Social Pop
If you want to add sticky sidebar social sharing tabs Social Pop is the plugin for you. Social pop adds simple and elegant social tabs for all the major social bookmarking/networking sites to the side of our website. This makes it effortless for readers to share your work.
FREE – JetPack Social Sharing
JetPack is a beast of a plugin with many useful features – one of them being social sharing. Add icon or text social sharing links to your posts so visitors to your site can easily share your work with their friends and followers.
WordPress Caching Plugins
FREE – WP Super Cache
This plugin has more downloads than there are people in Costa Rica. Why? Because WP Super Cache can make your WordPress website super fast by displaying static HTML pages to most users (using Mod_Rewrite, PHP, and legacy caching to peed things up).
FREE – W3 Total Cache
W3 Total Cache can improve your page speed by increasing server performance and reducing download times. It does such a good job that it’s even recommended by well known companies such as Page.ly, DreamHost, MediaTemple, Go Daddy and Host Gator.
Premium – WP Engine
Yes – I know that WP Engine is not a plugin, but I think they’re worth mentioning here. We use them to host WPExplorer, and because WP Engine uses managed caching there is no need for a plugin to keep your site speedy.
WordPress Notification/Alert Bar Plugins
Premium – FooBar
Foobar is a great plugin for adding customized notification bars to your website(s). You can choose options including but not limited to top, bottom, inline, social buttons, RSS feed, tweets, scrolling messages, custom HTML, unlimited bars and much more.
FREE – WordPress Notification Bar
If all you want is a basic notification bar, you might want to give WordPress Notification Bar a try. This plugin lets you add a simple notification bar to the top of your website with options for text, callout button and color customization.
WordPress Slider Plugins
Premium – Layer Slider
For the ultimate in slider customizations you have to take a look at the Layer Slider WordPress Plugin. You can create and perfect your sliders down to the pixel, millisecond, and even percentage of a degree rotation. There’s no question why this plugin is so popular.
Premium – Slider Revolution
The Slider Revolution WordPress Plugin is full of options. Make your slider full width, full screen, responsive, captioned, fast, slow, or choose from any number of customizations for typography, links, buttons, animations, transitions, etc.
Premium – NivoSlider
A fabulous plugin, the NivoSlider is a tried and true WordPress slider plugin to add to yoru website. There are multiple transitions, a handful of slider types (manual, category, sticky, etc.), preset css styles, and for quick setup it’s integrated with 500px, Flickr and Instagram.
Premium – Soliloquy
Soliloquy is an awesome responsive slider plugin. For those who need more addons are available for slider themes, thumbnail navigation, Instagram integration, featured content slides, dynamic cropping, carousel, lightbox, edit screen preview and image filters.
Premium – SlideDeck
Create neat and tidy sliders using SlideDeck. The plugin supports image, text, videos and HTML and includes a side-by-side editor so you can see your changes in action as you make them. Plus Soliloquy features a drag & drop slide order and supports 14 different content sources.
FREE – Soliloquy Lite
Get the lovely Soliloquy WordPress slider plugin for free by trying out the lite version. The slider is still responsive, has drag & drop image uploading, and if you ever want more you can purchase the full version or a support license for extra help.