Web 2.0 refers to the transition from static web pages to a more dynamic web allowing users to interact and collaborate. It enables users to connect, share and generate content. The document discusses how Web 2.0 has transformed distance learning by facilitating more interactive and collaborative learning environments compared to traditional one-way delivery of content. Educators are encouraged to incorporate Web 2.0 tools like podcasts, blogs, photo sharing, maps, video and wikis to engage students and support new styles of teaching and learning.