There are many advantages and disadvantages in those websites, the advantages that have those websites, for example; you have entertainment in those sites, there are a lot of accounts that publish funny videos, funny pictures, it's impossible to get bored in this social sites, another advantage would be that you know more people from people that you know, so they can publish photos and when you see a lot of photos that he appears, it will be like you knew him, apart from this, they make you more informed, you can get informed about many things, there are a lot of accounts that they publish news of any places that you didn't know.
But there are some disadvantages for example, if you are all the day on the mobile phone you lost the connection that you have with your family or friends, because we pass a the most time in our phone, another disadvantage can be a lot of people publish personal information to people that they don’t know, although there are hackers that hack your account and they can publish any photo if they have the password of your account.
In those websites you follow people and this people are consider friends, but there are differences, between a traditional and a virtual friend; a traditional friend you know that is real but, in a virtual friend you don't know that is real, people can create accounts with photos that are not real that are taken from google or any place, to a traditional friend you can tell personal things, but in a virtual friend you don't have the confidence to tell him those things.
In this social websites there are some dangers in the privacy, for example, they can know your password and they can entry in your account, so how do I guarantee my privacy? There are some advices that can help you, in one hand you must not share your password to anybody because they can entry in your account, in other hand, when you publish something you shouldn't tell very much personal information, other advice is that you should make you account private so nobody will see your pictures of videos, and if you decide to have a private account you shouldn't accept strange people.
If I had the opportunity to change something, I wouldn't change nothing because I don't have any annoyance, I get informed I get entertained, in respect of this I don't see any negative thing that I would change.
The worse thing of the social websites is the cyber bulling, cyberbullying is a tipe of bullying that takes place using technology. Examples of cyberbullying include mean text messages or emails, rumours sent by email or posted on social networking sites, but, parents and kids can prevent cyberbullying. Together, they can explore safe ways to use technology.