There are many popular social media platforms nowadays. The purpose of use of each of these platforms, the opportunities they offer, the target audience or the types of content in these platforms may differ from each other. According to this, it can be said that each platform has its own focal point. For example, some of them are based on photography, some of them are based on videos, and some of them are based on text. Among the social media platforms, the most popular and frequently used platforms are as follows:

1. Facebook: Facebook was established in 2004 by Mark Zuckerberg for Harvard University students to communicate and connect with each other, and later, it became one of the most important platforms in the world. One of the main purposes of Facebook, which can be seen as the pioneer of social networking approach, is to enable people to find old friends and make connection with them. With the new features added to the platform over time, it is still the leading one of the most preferred social media platforms today.
2. YouTube: YouTube, the world's most famous and most preferred video sharing site, was founded in 2005 by 3 former PayPal employees. YouTube, with the video format it offers to users, brought a completely different dimension to social media platforms and quickly attracted the attention of the whole world. This platform, which was purchased by Google approximately 1.5 years after the first video was uploaded to the platform, offers its users the chance to create their own channels, produce their own content and videos, and follow the videos, created by other users. Therefore, the platform, which allows its users to produce content directly, is one of the most important social media platforms of today.
3. Twitter: Twitter, one of the most popular microblogs, was founded in San Francisco and the first tweet in its history was published by its founder, Jack Dorsey, in 2006. Today, the platform, which includes personal and corporate tweets, especially news, is the leading one of the social media platforms where the information flows at the fastest level. Twitter, starting with a 140-character restriction, but doubling this character limit so as to allow users to express themselves more comfortably, is a platform where text messages quickly enter into circulation.
4. Instagram: Instagram, increasingly becoming more popular especially among young people, is one of the most preferred photo sharing platforms. Although the platform, which was established in 2010, is a relatively a newer platform, it has become even more interesting with its integrated operation with other platforms, its various and different filtering options, the opportunity to like and comment on shared photos, and the hashtag, that is tag (#) feature added to the program in 2011. In addition to the integration of videos that are visible for 24 hours with the story feature, live broadcasts and IGTV (Instagram TV) with the program, the platform, which has different features such as “boomerang”, is now the leading one of the most preferred applications. Instagram, especially for an audience called as social media phenomena, is a platform where sponsored contents can be seen intensely.
5. LinkedIn: It is a platform that people use mostly for their career purposes, and brings professionals from all sectors together. It is a platform where users can share their career and education information, experiences, achievements and awards, their backgrounds, articles, photos or ideas and interests in order to strengthen their business connections. This network helps its users to get connections in line with their career and professional fields and within the framework of their business activities. Moreover, this platform, where people can also follow opportunities such as jobs and internships, is a professional social sharing channel that enables the information exchange of the sectors and the business world. 
6. Snapchat: The platform, which was established for smartphones in 2011, is an instant messaging channel that allows its users to take photos or videos and add and enrich them with various effects, stickers, and notes and to share them with other people. It quickly gained popularity especially among young people. It is possible to limit the photos or videos taken through the platform from 1 to 10 seconds. Therefore, the photographs or videos which are taken with this application are completely deleted after a while.
7. WhatsApp: WhatsApp, perhaps the most popular instant messaging and calling application, and used by a large number of people around the world, is also a platform that allows at the same time to send voice messages, take photos and videos and share them as well. The platform, founded in 2009, was purchased by Facebook in 2014.
8. TikTok: It is possible to add special effects, filters, tags, stickers, music to the videos in the application, with which its users shoot short videos and share them. Although, the videos are limited to 15 seconds in the application, which is very popular, especially among young people, it is possible to extend the videos by adding them one after the other. In addition, the program has the feature enabling its users to follow each other and to send and receive messages. Although it is a requirement to be over the age of 13 in order to use the application, it is known that this platform is mostly preferred by young people, with the motto "Seize the day, share your creativity."
9. Swarm / Foursquare: The platform, which allows its users to make notifications (check-in) about their location and places for free, and to share this information, has emerged from, by separating from, the Foursquare application, another social media platform. While the Foursquare platform had the ability to notify before as well, this feature has been transferred to the Swarm application and Foursquare has turned into a platform where only the recommendations, suggestions and user experiences concerning the places are shared.
10. Pinterest: In the platform, which was established for the purpose of sharing photos and videos, it is possible for users both to create their own photo albums and to mark those from other users’ albums, and to create visual files and albums. On the other hand, it is an application that allows users to reach visuals that attract their attention more easily by offering categories related to their interests and subjects. As in other platforms, on the platform where users liked can be followed, all videos and photos shared in the followed accounts can be viewed instantly and it is also possible to comment on shares made.