In general, meso-level theories begin with a population size that falls between the micro- and macro-levels. However, meso-level may also refer to analyses that are specifically designed to reveal connections between micro- and macro-levels. Meso-level networks are low density and may exhibit causal processes distinct from interpersonal micro-level networks.[39]
My daughter went on Omegle after seeing it used on a YouTube video - the video showed the chat was safe- a tween talking to two young kids. My daughter's experience was much worse. Despite the numerous warnings on the initial page -she went right in and started to find people to chat with. She smartly had her camera off -but found no one would chat with her. So she turned it on - showing only below her neck. Sure enough - someone started chatting to her. He (using typing only) asked her to stand up and turn around - she did that - and he promptly threatened her -" I have taken a photo of your butt (she was fully clothed) and your face (not sure if that was possible) and I will put them onto social media and will embarrass you if you don't do what I say..." she promptly shut it down and came down in tears. We alerted the local police and reported the incident -which they fully supported. This is NOT a site for anyone but ADULTS. Despite many warnings and much education about this type of site - my daughter ignored everything for the chance of chatting and feeling that 'she belonged and was popular'. Such a hard thing to parent around. 

Using Dr Dave Chaffey's approach, the digital marketing planning (DMP) has three main stages: Opportunity, Strategy and Action. He suggests that any business looking to implement a successful digital marketing strategy must structure their plan by looking at opportunity, strategy and action. This generic strategic approach often has phases of situation review, goal setting, strategy formulation, resource allocation and monitoring.[59]

In the context of networks, social capital exists where people have an advantage because of their location in a network. Contacts in a network provide information, opportunities and perspectives that can be beneficial to the central player in the network. Most social structures tend to be characterized by dense clusters of strong connections.[48] Information within these clusters tends to be rather homogeneous and redundant. Non-redundant information is most often obtained through contacts in different clusters.[49] When two separate clusters possess non-redundant information, there is said to be a structural hole between them.[49] Thus, a network that bridges structural holes will provide network benefits that are in some degree additive, rather than overlapping. An ideal network structure has a vine and cluster structure, providing access to many different clusters and structural holes.[49]

I just saw this list and I thought I'd add what we do. We use Verizon as our carrier and they allow you to put time restrictions on the phone. My son switched to using a texting app on his IPod. We explained that going around us wasn't okay and we put parental controls on his IPod. We actually took seriously the need to keep the internet out in the open - our 2 computers are in a public space. So, we felt strongly that having the internet on a phone or on an IPod was counterproductive. So, we only let him have games and music on the IPod. He still finds work arounds, but at least he knows where we stand. Porn is a huge concern, but so is respecting our guidelines as far as no texting in school, or after 10pm on a school night (we feel like the only ones....) Best of luck - it's a battle but one that's worth winning.
Beginning in the late 1990s, social network analysis experienced work by sociologists, political scientists, and physicists such as Duncan J. Watts, Albert-László Barabási, Peter Bearman, Nicholas A. Christakis, James H. Fowler, and others, developing and applying new models and methods to emerging data available about online social networks, as well as "digital traces" regarding face-to-face networks.
The field of sociology focuses almost entirely on networks of outcomes of social interactions. More narrowly, economic sociology considers behavioral interactions of individuals and groups through social capital and social "markets". Sociologists, such as Mark Granovetter, have developed core principles about the interactions of social structure, information, ability to punish or reward, and trust that frequently recur in their analyses of political, economic and other institutions. Granovetter examines how social structures and social networks can affect economic outcomes like hiring, price, productivity and innovation and describes sociologists' contributions to analyzing the impact of social structure and networks on the economy.[51]
While working at a Fortune 100 company for nine years before moving to lead my current team, I became fascinated by customer behavior. What kinds of digital offerings most deeply engage customers in their digital lives? I started by looking at some case studies of the products, services, communications and experiences that had been embraced and adopted by customers during the first two decades of the internet. Over a period of seven years working on inbound marketing campaigns, what I found was a recurring pattern of three behaviors that drove the adoption of new digital experiences, which I call the three core behaviors of a network:

It would be great to also supplement this list with some kind of statistics regarding the audience, who is using each of these social networks. This statistics could be valuable for different kind of marketers, bloggers or business owners because with such statistics it would be possible to plan a strategy for business in different niches, like e-commerce, paper help online, any kind of services, or use it for the purpose of self-promotions for bloggers/website owners. 

Great works of art define more than just what is on display. They define a culture, a generation. What makes The Great Gatsby such a monumental piece of literature is not just the story or the interesting struggle between characters. It is the fact that The Great Gatsby defines an era in more than one way that makes it such a great novel. The Social Network is the Gatsby of our time. The themes that persist in this movie are so culturally significant and spot-on that it would be cheating yourself to not watch this movie. The Social Network is superbly directed and acted. The story is brilliant. The soundtrack is perfect. In addition to being incredibly well-made and culturally significant, this movie is also wildly engaging and entertaining. The Social Network is the best movie of 2011, if not also one of the greatest triumphs in cinema ever.
The role of a social media manager is easy to infer from the title, but which social networks they manage for the company depends on the industry. Above all, social media managers establish a posting schedule for the company's written and visual content. This employee might also work with the content marketing specialist to develop a strategy for which content to post on which social network.