Which elements of Web 2.0 suits your need as a student?

To me the most useful element of Web 2.0 would be Google. Google is a very famous search engine known world-wide. It is very useful because you can find any information about any subject needed at any time. A variety of any source of information is available. Which is needed more often when going into higher grades and getting older. Google is a very easy and obvious method of researching for information. As well, the information included is recently updated.

http://sahityaprocessjournal.blogspot.com/2013/04/which-elements-of-web-20-suits-your.html
http://zainabibrahimeism.blogspot.ae/2012/04/which-elements-of-web-20-suits-your.html