The document provides a history of the development of the Internet. It discusses how the ARPANET was developed in the 1960s by the US Department of Defense as the world's first operational information sharing network. It then describes how electronic mail became popular for communication and how this led to the development of instant messaging software for real-time conversations. Finally, it discusses the introduction of blogs in the mid-1990s as personal online diaries and how they have become a popular format for sharing views and media on various topics.