StumbleUpon is a discovery engine that finds and recommends content for its users. Come June 30, 2018, it will be moving to Mix. More than 25 million people use StumbleUpon for entertainment and information. In addition, more than 80,000 publishers, brands, and other marketers have used StumbleUpon’s Paid Discovery platform to promote their businesses. StumbleUpon was owned by eBay from May 2007 to April 2009, when Garrett Camp, Geoff Smith and several investors bought it back. It is now an independent, investor-backed startup once again.
Tumblr is one of the most difficult to use social networking platforms, but it’s also one of the most interesting sites. The platform allows several different post formats, including quote posts, chat posts, video and photo posts as well as audio posts, so you are never limited in the type of content that you can share. Like Twitter, reblogging, which is more like retweeting, is quick and easy. The social networking website was founded by David Karp in February 2007 and currently hosts more than 200 million blogs.
This is a social bookmarking web service for discovering, storing and sharing web bookmarks. The site was founded by Peter Gadjokov and Joshua Schachter in 2003 and acquired in 2005 by Yahoo. By the end of 2008, Delicious claimed that it had bookmarked 180 million URLs and acquired more than 5.3 million users. The service was later sold to AVOS Systems in April 2011 who later sold it to Science Inc. In January this year, Delicious Media said that it had acquired the service.
Because large-scale collaborative co-creation is one of the main ways of forming information in the social network, the user generated content is sometimes viewed with skepticism; readers do not trust it as a reliable source of information. Aniket Kittur, Bongowon Suh, and Ed H. Chi took wikis under examination and indicated that, "One possibility is that distrust of wiki content is not due to the inherently mutable nature of the system but instead to the lack of available information for judging trustworthiness."[171] To be more specific, the authors mention that reasons for distrusting collaborative systems with user-generated content, such as Wikipedia, include a lack of information regarding accuracy of contents, motives and expertise of editors, stability of content, coverage of topics and the absence of sources.[172]
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.[153] 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.[154]
Social media is a computer-based technology that facilitates the sharing of ideas and information and the building of virtual networks and communities. By design, social media is internet based and offers users easy electronic communication of personal information and other content, such as videos and photos. Users engage with social media via computer, tablet or smartphone via web-based software or web application, often utilizing it for messaging.

If you have a product or service of your own that you’d like to promote, you can use social media to generate sales. First, you can share links to your product and a description on your social platforms. One of my friends on Facebook started her own rustic D.I.Y. furniture and home decor business and always posts images of all the products she creates on her page which helps promote her business and bring in new customers.

Another thing to consider is that the most commonly-shared content on social media is an image. So, always include an image with your posts. This will dramatically increase your chances that one of your followers will share the post with their network. While building up a large network of followers is great, ultimately what you want is to have your followers—no matter how many you have—share what you're posting with their network, and those people will share your post with their followers, and so on.
Influencers can also make money by hosting events or doing  store appearances. Brands can team up with influencers with similar audiences to draw more attention to an event or new product launch. A great example of this, Mecca Maxima's event/festival Mecca Land. Mecca invited Australian fashion and beauty influencers including Shani Grimmond, Isabella Fiori and Sammy Robinson to host meet & greets and attend the event. Influencers tend to have great connections with their following and can build additional hype around events. 
Increasingly, social networks are tweaking their algorithms to favor content that remains on their site, rather than send users to an outside source. This spells trouble for those trying to drive traffic and visitors to external pages, but what's an SEO or content marketer to do? This edition of Whiteboard Friday goes into detail on the pros and cons of each approach, then gives Rand's recommendations on how to balance your efforts going forward.
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.
This is a social news and entertainment networking website where registered users can submit content such as direct links and text posts. Users are also able to organize and determine their position on the site’s pages by voting submissions up or down. Submissions with the most positive votes appear in the top category or main page. Reddit was founded by University of Virginia roommates Alexis Ohanian and Steve Huffman on June 23, 2005. A decade later, the site boasts more than 36 million registered accounts and 231 million monthly visitors.

Small businesses will profit in massive ways that from obtaining users to “pin” photos of their things on to their Pinterest boards. produce AN account, interact within the community by promise different individuals’s photos and transfer photos that stimulate people to shop for your product.so this is one of the way for make money from social media.
Social media has a range of uses in political processes and activities. Social media have been championed as allowing anyone with an Internet connection to become a content creator[50] and empowering their users.[51] The role of social media in democratizing media participation, which proponents herald as ushering in a new era of participatory democracy, with all users able to contribute news and comments, may fall short of the ideals. Online media audience members are largely passive consumers, while content creation is dominated by a small number of users who post comments and write new content.[52]:78
The idea that social media are defined simply by their ability to bring people together has been seen as too broad, as this would suggest that fundamentally different technologies like the telegraph and telephone are also social media.[18] The terminology is unclear, with some early researchers referring to social media as social networks or social networking services in the mid 2000s.[4] A more recent paper from 2015[2] reviewed the prominent literature in the area and identified four common features unique to then-current social media services:
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