▲ This is a picture of Facebook.

These days, many social media and applications have been developed by developing Internet technology. Many people use them to share information with each other and spend their free time. While the number of people who are using social media and applications is increasing, there are a lot of popular sites and applications for the people.

One example of the most popular social media is Facebook. Facebook is the most successful social media and has the most number of users. It is established by Mark Zuckerberg, a 19-years-old student at Harvard University, who founded the site in his school dormitory on February 4, 2004. In the first month of his opening, Dustin Moskovitz and Chris Hughes joined with him as partners. Facebook is a website where users can post, send a message, watch videos and do other things enjoyably.

▲ This is a picture of YouTube.

Another example of social media is YouTube. It is a video-sharing service operated by Google, and it is a combination of the work "You" and "Tube, Television." In 2005, Chad Hurley, Steve Chen and Jawed Karim founded YouTube in San Bruno, California. In October 2006, Google took over YouTube and nationalized the service started in 2007. Users of YouTube can share information by sharing various video contents. In an interview with experts, they said that various social media will be formed more in the future.

Through these social media, many people are able to share any news or information. In the future, developing safe sites and applications is important by increasing the number of social media and application users.