the advantages of using the web 2.0 is that it lets us publish our own content with no restriction, this comes down to what is suitable which brings up the question of what is the limit of what we can post. most people say that we should be democratization which would let us do what ever we want. but then the police would still ban you if you were to look up or write about bombs, they say it is terrorism. this is going against the point of having web 2.0 because it is still limiting what we can publish, even though it is totaly independant. this is a big disadvantage of having web 2.0, we are surposed to be making our own media rather than having a controlled page.

although it will let the user have a sense of personalization on the web, they can create there own page and make themselves whoever they want. but the disadvantage is that you as a user are still limited due to the fact that it can only personalize to the way the page has been set out by the company that makes it. again limiting what can be done.
Web 2.0 will let you seek out new bands or friend which gives you a sense of interactivity, this brings people closer to people but also allows for illegal things such as file sharing, which is limited by the users.
so really the fact that web 2.0 lets you design your own web page and have a sense of control it has limits which are controlled by the company which makes the page.