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There is speculation that social media is becoming perceived as a trustworthy source of information by a large number of people. The continuous interpersonal connectivity on social media has led to people regarding peer recommendations as a reliable source of information. However, this trust can be exploited by marketers, who can utilise consumer-created content about brands and products to influence public perceptions.
Having social media in the classroom was a controversial topic in the 2010s. Many parents and educators have been fearful of the repercussions of having social media in the classroom. There are concerns that social media tools can be misused for cyberbullying or sharing inappropriate content. As result, cell phones have been banned from some classrooms, and some schools have blocked many popular social media websites. Many schools have realized that they need to loosen restrictions, teach digital citizenship skills, and even incorporate these tools into classrooms. Some schools permit students to use smartphones or tablet computers in class, as long as the students are using these devices for academic purposes, such as doing research. Using Facebook in class allows for integration of multimodal content such as student-created photographs and video and URLs to other texts, in a platform that many students are already familiar with. Twitter can be used to enhance communication building and critical thinking and it provides students with an informal "back channel"), and extend discussion outside of class time. YouTube is a frequently used social media tool in the classroom.[not in citation given] Students can watch videos, answer questions, and discuss content. Additionally, students can create videos to share with others.
Social medias are the key window to get the information from every corner of the globe. Social media facilitate the development of social networks by connecting a users profile with the other individuals or the groups. It is the great platform of communications. Different social medias such as: google, facebook, instagram, whatsapp, twitter and so on which are providing a range of a positive and negative impacts on our daily life.
Also, realize that people aren’t going on social media to buy things. Instead that want to be engaged or entertained and possibly learn something. With that being said, I’ve found out about a lot of great products and services via social media so if you do choose to promote affiliate products, realize that many of your followers probably won’t buy but the larger your following is, the more likely you are to make a sale.
Like Pinterest, Instagram is a visual social media platform. The site, launched on October 6, 2010, has more than 400 million active users and is owned by Facebook. Many of its users use it to post information about travel, fashion, food, art and similar subjects. The platform is also distinguished by its unique filters together with video and photo editing features. Almost 95 percent of Instagram users also use Facebook.
Many teenagers suffer from sleep deprivation as they spend long hours at night on their phones, and this, in turn, could affect grades as they will be tired and unfocused in school. Social media has generated a phenomenon known as " Facebook depression", which is a type of depression that affects adolescents who spend too much of their free time engaging with social media sites. "Facebook depression" leads to problems such as reclusiveness which can negatively damage ones health by creating feelings of loneliness and low self-esteem among young people. At the same time, a 2017 shown that there is a link between social media addiction and negative mental health effects. In this study, almost 6,000 adolescent students were examined using the Bergen Social Media Addiction Scale. 4.5% of these students were found to be "at risk" of social media addiction. Furthermore, this same 4.5% reported low self-esteem and high levels of depressive symptoms.
According to the Pew Research Center, a majority of Americans at least occasionally receive news from social media.  Because of algorithms on social media which filter and display news content which are likely to match their users’ political preferences, a potential impact of receiving news from social media includes an increase in political polarization due to selective exposure.  Political polarization refers to when an individual's stance on a topic is more likely to be strictly defined by their identification with a specific political party or ideology than on other factors. Selective exposure occurs when an individual favors information which supports their beliefs and avoids information which conflicts with their beliefs. A study by Hayat and Samuel-Azran conducted during the 2016 U.S. presidential election observed an “echo chamber” effect of selective exposure among 27,811 Twitter users following the content of cable news shows.  The Twitter users observed in the study were found to have little interaction with users and content whose beliefs were different from their own, possibly heightening polarization effects. 
Whether you are running a small, local operation, or heading a global, enterprise-level effort, the statistics above make it clear: Your customers are online. They are interacting in social channels with their friends, colleagues, and other brands in search of information, recommendations, and entertainment. If your company is not around to answer, a competitor will be. In doing so, your competitor will quite likely take away the customer at hand, along with anyone else listening.
You can start your freelance social media marketing business by creating your own personal brand on social media to attract the leads and inquiries. You can do that by writing guest blog posts on social media marketing on popular digital marketing related blogs. You can also create your own website or blog to create your own brand and share your blog posts on different social media channels to bring in traffic.
The variety of evolving stand-alone and built-in social media services makes it challenging to define them. However, marketing and social media experts broadly agree that social media includes the following 13 types of social media: blogs, business networks, collaborative projects, enterprise social networks, forums, microblogs, photo sharing, products/services review, social bookmarking, social gaming, social networks, video sharing, and virtual worlds.