writting an essay: How to narrow a topic

Hello everyone, today I'm going to show you 3 different ways to narrow a topic before writting a parragraph.

In first place, we will have to choose a topic which isn't neither too narrow nor too broad. In my case i chose ''friends''

The first method I used was making a list of ideas and terms related to it.

-friends
-social websites
-internet
-penpals
-letters
-emails
-meeting new friends
- activities you do with your friends

The second method I used, which is my favourite one, was a mind map, which is more visual.

Later, we will have to narrow our mind map.

Finally the third method consist of free writting. For doing it, we will have to write as much as we can, trying to include as many ideas as possible. It doesn't matter if you have any mistakes, you will be able to eddit them later.

''Nowdays, people have thousands and thousands of friends, as social websites become more and more popular. Everybody flollow everybody and friends of their friends, sometimes just to be able to say ''I have X thousands of friends in facebook'' but the point is How many of those people are real friends? Moreover, Can you conssider a friend someone you've never met? what about penpals? it isn't something as new as facebook, many years before people also used to have ''friends'' they didn't know at all, but they used to send letters, which to me is something much more personal and helped them cultivating themselves, as they were able to learn from a native different facts about other cultures and improve another languages. For luck or not, things  have changed a lot in the last years and from my point of view with new technologies everything is becoming more impersonal.''