What are the benefits/advantages of the elements that Web 2.0 covers?

• ·        With Web 2.0, information can be pulled from different places, and it can be personalized to however the person wants to. 
• ·        Web 2.0 will allow the population to communicate with each other and spread idea.
•     Information can flow freely and people can express their ideas easily.
•      The population would become more informed. Instead of getting information from once source, they can find their information from multiple (different) sources, this will allow them to make better decisions about the world around them. 
•     A good example of this is the ability to read newspapers from various countries. You can view events from more than one view. 
•     Another powerful advantage of Web 2.0 is communication. It has become obvious that the Internet is one of the greatest communication mediums in the world.

http://www.exforsys.com/tutorials/web-2.0/advantages-and-disadvantages-of-web-2.0.html
http://koreanwaterdrop.blogspot.ae/2012/04/summary-4-what-are-benefitsadvantages.html