positive / negative

negative things about the internet:
There is nobody to supervise
It is hard to get the info that you're looking for
You can get hacked if you don't know how to use it

positive things about the internet:
You can get a lot of info
You can meet a lot of people
You can download some stuff (only the legal ones)

negative things about GSM phones:
They radiate
Everybody can hear your conversations
You can get hurt if you use it while driving

positive things about GSM phones:
You can call anyone at anytime
You can use it as a camera
You can listen to the music