Social media "mining" is a type of data mining, a technique of analyzing data to detect patterns. Social media mining is a process of representing, analyzing, and extracting actionable patterns from data collected from people's activities on social media. Google mines data in many ways including using an algorithm in Gmail to analyze information in emails. This use of information will then affect the type of advertisements shown to the user when they use Gmail. Facebook has partnered with many data mining companies such as Datalogix and BlueKai to use customer information for targeted advertising.[49] Ethical questions of the extent to which a company should be able to utilize a user's information have been called "big data".[49] Users tend to click through Terms of Use agreements when signing up on social media platforms, and they do not know how their information will be used by companies. This leads to questions of privacy and surveillance when user data is recorded. Some social media outlets have added capture time and Geotagging that helps provide information about the context of the data as well as making their data more accurate.

It has been estimated that some 81% of Americans used social media as of 2017, and increasingly so. Over one-fifth of an individual's online time is spent on social media, according to one estimate. In 2005, the percentage of adults using social media was around 5%. Globally, there are roughly 1.96 billion social media users. That number is expected to rise to 2.5 billion by the end of 2018. Other estimates are even higher. According to the Pew Research Center, social media users tend to be younger (some 90% of people ages 18 to 29 used at least one form of social media), better educated and relatively wealthy (earning over $75,000 per year). The United States and China lead the list of social media usage:
Cyberbullying/Cyberstalking: Children and teenagers are especially susceptible to cyberbullying because they take more risks when it comes to posting on social media. And now that we all interact on social media via our mobile devices, most major platforms make it possible to share our locations, opening up the doors for cyberstalkers to target us.
Use a service like Flickr to get people acquainted with your work, offering photos they can use on their website for free under the Creative Commons license. Once you’ve built up a following, join another stock photography site like Shutterstock or iStockphoto where users will pay for the opportunity to use your pictures on their blogs. You can make up to $120 off of one paid download of your photo. Even if you get compensated at a lower level, the money can really add up if you take a lot of quality photographs.

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.[194] 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.[195][not in citation given] Students can watch videos, answer questions, and discuss content. Additionally, students can create videos to share with others.
Social media may have been influenced by the 1840s introduction of the telegraph in the US, which connected the country.[10] ARPANET, which first came online in 1967, had by the late 1970s developed a rich cultural exchange of non-government/business ideas and communication, as clearly evidenced by ARPANET#Rules and etiquette's "A 1982 handbook on computing at MIT's AI Lab stated regarding network etiquette," and fully met the current definition of the term "social media" found in this article. The PLATO system launched in 1960, which was developed at the University of Illinois and subsequently commercially marketed by Control Data Corporation, offered early forms of social media with 1973-era innovations such as Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowd-sourced online newspaper and blog; and Access Lists, enabling the owner of a notesfile or other application to limit access to a certain set of users, for example, only friends, classmates, or co-workers. Tom Truscott and Jim Ellis conceived the idea of Usenet in 1979 at the University of North Carolina at Chapel Hill and Duke University, and it was established in 1980.
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