Examples of Web 2.0

However to properly explain and prove the existence of Web 2.0 let me give you an example.
A very good example of this is seen in Britannica Online compared to Wikipedia.
Britannica Online was, and I suppose still is somewhere, an online encyclopedia where a team of publishers got together and chose the content of the website - this being the Web 1.0 way. The user then has no choice but to accept the information that the site provides and should they find error has no opportunity to fix the information.
Wikipedia however is a user based, sure someone or a group of people got together and decided that a service like this should exist, but the content, the editing and using is all done by the users of Wikipedia. Should a user find fault with the content they can edit it, or make it known that it should be edited. Should a user find that there is not the information that they believe to be important available they can write up a new posting for the site.
This comparison between these two similar sites shows the how Web 2.0 gives the user new control and options not previously available during the Web 1.0 stage.