Web 2.0 describes websites that emphasize user-generated content and interactivity between users through social media dialogue and collaboration. Examples include social networking sites, blogs, wikis, video sharing sites, and web applications that allow users to interact and share content. While Web 2.0 suggests improvements to the World Wide Web, it refers more to changes in how pages are made and used rather than technical specifications. Whether Web 2.0 fundamentally changed the Web or is just marketing jargon has been debated.