The social networks i use on a daily bases which i also feel are popular with others too.

1. Facebook
On Facebook you can talk and share to a lot of people. From
videos, statuses, photos and more.
Facebook is probably the most known social network, but it isn’t
everyone's favorite.
Facebook is where someone can share a post in different ways with
the people they choose to be friends with on the social networking
site.
People send each other friend requests this means you can see
what other people are doing and communicate with them only in
different ways

2. On Instagram You can follow your friends and they can follow
you.
This is another popular social networking site. It is commonly
used to post and share photos and videos.
When posting of sharing these videos you can post a little title
for the photo or video, but that is optional.
People post and share photos and videos so that other
followers can like and comment on them.
Instagram is very simple to use and I feel this is why people do
like to use it.

3. Snapchat is a little more different to these other two social networks
because it can only be used by a smart phone and is a unique way to
share photos and videos with other people.
Like the other social networks you can choose who you follow and
who you want to follow you.
Then you can send videos and photos to each other, but they will
only last for a maximum 10 seconds.
Also posting a story is a quick and easy way to let everyone view a
picture or video.
The story will be there for 24 hours after first posting.
Only your friends will see.