Backup Plugins:

• BackWPup
• BackUpWordPress
• Updraft
• WordPress Backup to Dropbox
• VaultPress

Boards and Membership

• Job Board
• Membership Plugin WP eMember – WordPress eMember is a powerful WordPress Membership Plugin that can turn your existing or new WordPress site into a fully featured membership site.
• Participants Database
• Restrict Content Pro – Restrict Content Pro is a complete membership and premium content manager plugin for WordPress.
• Simple Membership
• User Pro – UserPro offers beautiful front-end profiles, login and registration for WordPress.
• Users Ultra
• WP eMember – Creates user communities.

Calendars, Scheduling and Bookings

• Appointy Online Appointment Scheduling
• Birchpress Scheduler
• Booking Calendar
• Booking & Appointment Plugin for WooCommerce – Turn your WooCommerce store into a full-fledged Booking & Reservation system.
• Booking System Plugin
• Calendarize it! – Calendar plugin with enough options to keep even the most demanding webmaster happy.
• Easy Online Scheduling
• Events Calendar Ultimate
• Pinpoint Booking System
• EventOn – WordPress highly customizable events calendar.
• The Events Calendar
• WP Simple Booking Calendar

Design

• Parallax Scroll – We do not recommend Parallax if you intend to optimize your site for search engines, however, for brochure type sites, it can creating some interesting effects.
• SimpleTiles – SimpleTiles makes it a breeze to create Windows 8 Metro-style tiles for your blog.
• Simple Full Screen Background Image – Creates full screen backgrounds for WordPress. It is recommended that you use an image that is at least 1600×1200 px.
• Simple Full Screen Background Image Pro – Adds many useful features to the above free version.
• Special Text Boxes – Highlights any portion of text as text in the colored boxes
• Team Showcase – Display a set of pictures and information in different layouts. The main purpose of the plugin is to display team/staff/council members.
• Testimonials Plugin – Testimonials by Aihrus lets you randomly slide or list selected portfolios, quotes, reviews, or text with images or videos on your WordPress site.
• Use Any Font

Directories

• Business Directory Listings – Build local directories, business provider listings, Yellow-Pages directories, Yelp-like review sections and much more.
• Classiera – Classified Ads WordPress Theme

eCommerce

• Easy Digital Downloads
• Give Donation – Includes recurring donations
• WooCommerce Options and Price Calculation Formulas
• WooCommerce Accommodation Bookings

Learning Management System (LMS)

• Academy
• Clever Course
• EDU
• Guru
• Invent
• LifterLMS
• Polytechnic
• University
• WPLMS

Media

• 3D Flipbook – 3D page turner.
• Amazon S3 Media Upload
• Background Image to Full Screen
• Bookshelf Slider
• CoolText – CoolText WordPress Plugin allows you to use complex text animations.
• Delete Unused Images – Helps to remove left over media files.
• Smush – Image compression plugin
• Image Map HotSpot
• Image Map Selector
• Media Library Helper – Helps to remove left over media files.
• WPSolver – Video gallery plugin.

Miscellaneous

• Accessibility Plugin
• FAQPlus – A complete Frequently Asked Question plugin for WordPress which has customizable CSS for every FAQ group with 25+ easing animation effect.
• Intense Plugin – Intense lets you easily create websites using shortcodes, custom post types, templates, snippets, and more.
• Query Monitor – View debugging and performance information on database queries, hooks, conditionals, HTTP requests, redirects and more.
• Relivanssi – A Better Search
• Resume Plugin – The Digital Business Card
• WP Clever FAQ Builder – Smart support tool for WordPress
• Weglot Makes your website multilingual (language Translator)
• What the File – Find out what template parts are used to display the page you’re currently viewing!

PayPal

• Donations Made Easy – Smart Donations
• Easy PayPal
• PayPal Donations
• PayPal for WooCommerce
• Quick PayPal
• Seamless Donations
• Simple PayPal Shopping Cart
• Ultra Simple PayPal Shopping Cart

Promotion

• Announcer
• Featured Page Widget – This neat plugin allows you to add a page as a featured page in your WordPress sidebar. It allows you to display a page title, featured image, and excerpt.
• Follow My Blog Post – Allows your users to follow changes on a particular post/page for your WordPress site.
• Foobar – A WordPress plugin for adding great looking notification bars to your site.
• Popular Posts – Allows you to display your website’s most popular posts in a nice widget.
• Promo Bar
• What Would Seth Godin Do – By default, new visitors to your website will see a small box above each post containing a customized message. You can customize this message, its lifespan, and its location. The message can be excluded from certain pages if desired.
• WordPress Notification Bar – A quick and easy notification bar and call to action for your site.

Recipe

• Get Me Cooking Recipe Template
• Recipe Card
• Recipe Hero
• WP Ultimate Recipe

Restaurant

• Accura Food Menu WP
• Food and Drink Menu – Create a restaurant menu for cafes, bars and eateries, and display it in templates, posts, pages and widgets.
• Food Press
• Quick Restaurant Menu
• Restaurant Menu Manager
• WPPizza

Social Media

• MircroBlog Poster – Auto publish to social networks.

Security

• 2 Factor Authentication

Social Media

• SimpleShare – Simple Share Buttons allows your visitors to share your content with ease.

Speed and Caching

• https://tomasz-dobrzynski.com/wordpress-gonzales

Video

• Generate Videos From Links Pro – A wordpress plugin that generates video players from links.
• WP Playlist Video Gallery – With this wordpress plugin you can create any number of YouTube playlists, add as many videos as you want and display them on your site.