WordPress is a free and open source blogging tool and content management system (CMS) powered by PHP and MySQL. It has many features including a plug-in architecture and a template system. wikipedia.org

Yoast SEO is a WordPress SEO plugin. It handles the technical optimization of your site & assists with optimizing content. wikipedia.org

Email marketing is directly marketing a commercial message to a group of people using electronic mail email. wikipedia.org

WP e-Commerce is a WordPress plugin that provides tools for users to start selling products, downloads or services online. WordPress is a free and open source blogging tool and content management system (CMS) based on PHP and MySQL.

Constant Contact, Inc. is an online marketing tool offering email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools, primarily to small businesses, nonprofit organizations, and membership associations. wikipedia.org

Social media marketing refers to the process of gaining traffic or attention through social media sites. wikipedia.org

A web hosting service is a type of Internet hosting service that allows individuals and organizations to make their website accessible via the World Wide Web.

Mailchimp helps you design email newsletters, share them on social networks, integrate with services you already use, and track your results. It's like your own personal publishing platform. wikipedia.org