What are social media tools?

What are social media tools?  Tools allow the creation and publication and modification and distribution of using simple tolls as messages, blogs, social networks, podcasts.
https://www.facebook.com
is a social media connecting with people around the world.

https://www.instagram.com/accounts/login/?hl=en
Instagram is a social networking app made for sharing photos and videos from a smartphone. Its owned by Facebook.
 
https://www.google.com/

website for search information about (someone or something) on the internet using the search engine.

https://www.youtube.com/
YouTube is a video sharing service where users can watch, like, share, comment and upload their own videos. The video service can be accessed on PCs, laptops, tablets and via mobile phones

https://twitter.com/?lang=en
Twitter is an online news and social networking site where people communicate in short messages called tweets. Tweeting is posting short messages for anyone who follows you on Twitter, with the hope that your messages are useful and interesting to someone in your audience.