This document provides an overview of emerging technologies in the 21st century and how they can be used for communication, education, and business purposes. It discusses various social media platforms like YouTube, Facebook, and blogs and how they have grown significantly in users. It also covers technologies like podcasts, RSS feeds, tagging, VoIP, and wikis. The key message is that these tools can be harnessed to spread messages and engage with audiences. Emerging technologies constantly create new opportunities so it is important to remain open and adapt to change.