WordPress.com is a free website hosting service and WordPress.org is a self-hosted platform that can be used to create websites. WordPress.com offers features that are not available on WordPress.org, such as advertising and analytics tools, which can be used to make money for the website owner. WordPress is an open-source platform that enables anyone to create content for websites and blogs with ease, whether they want to use it for their own personal blog or build an online business from their website's content. It also has a large community of users who share tips and tricks on how to improve your site's performance and design in addition to creating custom plugins for your site's functionality needs.