Web 2.0 refers to the second stage in the evolution of the 📝World Wide Web, generally considered to have emerged in the early 2000s. Unlike the earlier 📝Web 1.0, which was primarily static and read-only, Web 2.0 emphasized interactivity, user participation, and collaboration. This phase introduced platforms such as social networking sites, blogs, wikis, and video-sharing services, which allowed users not only to consume but also to create and distribute content. The concept is often associated with the rise of companies like Facebook, YouTube, and Wikipedia, as well as the adoption of technologies like AJAX, 📝Really Simple Syndication (RSS), and 📝Application Programming Interface (API)s that enabled richer user experiences. Scholars such as 📝Tim O’Reilly helped popularize the term, describing Web 2.0 as a shift toward harnessing collective intelligence and network effects. The Web 2.0 era played a central role in transforming the internet into a participatory platform that facilitated user-generated content, social interaction, and the emergence of digital economies. Its influence continues to shape online ecosystems and has paved the way for discussions about subsequent developments like 📝Web 3.0 and decentralized architectures.