1. Why Twitter? Why Twitter Matters? By Jansen Lu

2. Twitter raised in SXSW Conf 2007

3. A Brief Introduction What is Twitter?

4. So, Why Twitter Bother me?

6. Twitter is Real Time! "People really want to do stuff real time and I think they [Twitter] have done a great job about it," the Guardian quoted Larry Page, co-founder of Google.

9. Update via Web Interface

10. Update via IM

11. Update via Mobile / SMS

12. Update via Browser Plugin

13. Update via Third Party Apps

14. So Easy to Use!

15. So, How People Use Twitter?

17. Does Twitter Make Sense in Business World?

18. Companies Using Twitter Source: Immediate Future, 2009

19. Twitter Presence Source: Immediate Future, 2009

24. Join Twitter before it becomes Popular! Follow me to at Twitter.com/jansen