WordPress is a free and open-source tool and content management system (CMS) based on PHP and MySQL. Features include a plugin architecture and a template system.
WordPress also features integrated link management, a search engine–friendly platform, the ability to assign multiple categories to articles and support for tagging of posts and blogs.
It is one of the easiest and most powerful blogging and website content management systems available today.
Search engine and SEO friendly: WordPress.com is optimized for SEO and getting your site in front of searchers on Google, Bing, Yahoo, and others.
Easy to use: WordPress.com lets its users easily create beautiful and powerful websites or blogs.
Tagging: Tags provide a useful way to group related posts together and to quickly tell readers what a post is about.
Themes: WordPress users may install and switch between themes, which allow users to change the look and functionality of a WordPress website.
User's own domain name: Users can set up and configure a custom domain.
What platforms does this service support?
WordPress is a cross-platform service working on on Mac or Windows, and there also exist native applications for WebOS, Android, iOS, Windows Phone, and BlackBerry.
What is this service generally used for?
This service is used for creation and maintenance of websites or blogs.
Does this service integrate with any other apps?
This service integrates with many other apps.
Does this service offer an API?
There are multiple API sections / topics, like Dashboard Widgets API, Database API, HTTP API, File Header API, Filesystem API, Metadata API etc.
Who are the main user groups of this service?
WordPress user consist of many famous blogs, news outlets, music sites, Fortune 500 companies and celebrities.
For example, famous blogs like Mashable and TechCrunch are both on WordPress. News outlets like The New York Times’ blog and CNN’s on-air.
Does this service offer multi-user capability (e.g. teams)?
WordPress allows several users to access and administrate a site, with various permission levels controlling user and team access across the board.
Does this service offer guides, tutorials and or customer support?
WordPress's primary support website is WordPress.org - providing the online manual for WordPress and a living repository for WordPress information and documentation. There are also WordPress Forums, live chat, email, support pages.