Are new technologies positive or negative?

Nowadays, lots of people use new technologies for several things like working, studying, chatting, checking the news,...
This fact has positive things but also some negative things.
On the one hand, we can't deny that new technologies are really useful. For example, if you have to write a long essay, you can use a computer in order to write it faster than if you would do it by hand.
Moreover, new technologies make possible that you chat with people who maybe are so far from where you are. Furthermore, we have the possibility of seeing someone who's in the other part of the world just using a computer.
In addition, Internet may bring you all the information you need to do a project, an essay...
On the other hand, I hardly believe that if we use these new technologies too much, they might be harmful because there is the possibility of becoming addicted.There are some people who can't stop using a mobile phone or a computer all the day and it could become a really serious problem. 
In conclusion, I think new technologies are good only if we use them moderately. Although we can use social networks, chats or something like that, we must never forget to talk face to face.