My opinion on social networks:

My opinion is that social networks are helpful sometimes, allow us to contact friends and family in other countries are also know as health or if they are all right at work.
Also with social networks can share photos or see camara wed long those people who do not see.
But some unfortunately are not very accessible,
are not easy to use for my review, for example with the twitter,
it is not easy to identify what needs to be done within that network,
but for other people if it's easy,
and some prefer twitter to facebook to communicate quickly with those friends or distant relatives.
Not only used to talk to people who do not see much, but it is perhaps faster than a phone,
easier to find many friends at once and can comversar with them.
I prefer facebook is a social networking easy to use, and if one is careful who agrga as friends,

 it saves a lot of trouble.
For example social media is the biggest problem agreciones is on them,
discrimination in anonymous maybe sometimes you might get done.
For example do a facebook trout and speak ill of you.
So I always have to be careful who you talk to, and share photos.