Writing a WordPress Plugin From Scratch: A Step-by-Step.
This popular plugin not only gives you a comprehensive list of ways to improve your SEO, but wraps everything in a simple, easy-to-use package with detailed analysis, reports, and suggestions. WordPress SEO by Yoast is like having a personal SEO expert right in your WordPress dashboard, and it’s suitable whether you’re a first-time or advanced WordPress user.
Create your free blog on WordPress.com. Choose WordPress.com for an all-in-one solution for your blog, including all the WordPress plugins and themes you need.
WordPress Plugin: A WordPress Plugin is a program, or a set of one or more functions, written in the PHP scripting language, that adds a specific set of features or services to the WordPress weblog, which can be seamlessly integrated with the weblog using access points and methods provided by the WordPress Plugin Application Program Interface (API).
All the WordPress migration plugins on this list condense the migration process down to just a few simple clicks. Whether you’re just cloning your site to a new host or you’re changing your domain name, these plugins make the process simple. And while not all of them are free, none of them are likely to make your wallet scream out in pain.
A WordPress document library plugin is a popular way to list PDF files or other documents in a structured format with download links. A good document library makes it quick and easy for people to find the items they need - for example, with search options and filters. Surprisingly, there aren't many good quality WordPress document library plugins around - free or premium.
The Shortcode API is a simple set of functions for creating WordPress shortcodes for use in posts and pages. For instance, the following shortcode (in the body of a post or page) would add a photo gallery of images attached to that post or page: (gallery).
There are multiple ways to view your debug log from the WordPress backend. My preferred method is using the Log Viewer plugin. This free plugin gives you two ways to view your debug log, as well as the ability to clear it. When this plugin is active, you can view your log from its admin page, which is accessible from inside of the Tools menu.