PowerReviews is a ratings and reviews management software. It helps more than 1,000 brands and retailers collect, display and syndicate customer ratings and reviews, and answer customer questions. Ratings, reviews and Q&A allow companies to reach customers at the moment of purchase and help to drive traffic, increase sales and create actionable.
Gravatar is a service for providing globally unique avatars and was created by Tom Preston-Werner. It is owned by Automattic, having integrated it into their WordPress.com blogging platform.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.