A social network is the pattern of relationships connecting people or groups in sociology. It shows who is linked to whom, and those ties shape access to information, support, and influence.
In Intro to Sociology, a social network is the web of ties connecting people, such as friends, classmates, coworkers, family members, and community contacts. It is not just a list of people you know. The term focuses on the pattern of connections between them, because those connections affect how information, support, and opportunities move.
A social network can be small and tight, like a close friend group that talks every day, or large and scattered, like a student whose contacts stretch across clubs, jobs, and online communities. Sociologists care about both the size of the network and its structure. A dense network, where many people know one another, usually creates stronger shared norms and more trust. A looser network can spread new ideas faster because it reaches more different circles.
The position of a person inside the network also matters. Someone who connects separate groups, such as a classmate who knows both the drama club and the soccer team, can act as a broker. That person may hear about events, jobs, or rumors earlier than others, and they can pass information across groups. This is why social networks are linked to social capital, which is the advantage you get from relationships.
Not every tie works the same way. Strong ties, like family or close friends, usually provide emotional support, advice, and reliability. Weak ties, like a former teammate or a friend of a friend, often give you new information because they move in different circles. In sociology, weak ties are a big reason people find internships, housing leads, or group project partners outside their closest circle.
Social networks also shape behavior. Ideas, habits, and even norms can spread through connected people. If several students in a network start studying together, joining the same organization, or skipping class, those patterns can spread because people influence one another. That makes the social network more than a background detail. It is part of the social structure that helps explain why groups act the way they do.
Social network shows up all over Intro to Sociology because it connects individual relationships to bigger social patterns. When you study inequality, for example, network access can affect who hears about jobs, who gets recommendations, and who ends up excluded from opportunities. Two people with the same talent can have very different outcomes if one is plugged into a dense, resource-rich network and the other is isolated.
It also helps you interpret group behavior. A class discussion, clique, workplace team, or online community does not function just because individuals are present. The ties between members shape who speaks, who leads, who gets ignored, and how quickly ideas spread. That makes social network a useful lens for topics like group size, group norms, cohesion, and ostracism.
In written responses, this term lets you move beyond saying that someone had a “good support system.” You can explain why the support system matters, what kinds of ties it includes, and how those ties create power, trust, or access. That is the sociological move: looking at the structure of relationships, not just the personalities of the people involved.
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view gallerySocial Capital
Social capital is the benefit you gain from your relationships, and social networks are the structure that produces it. A strong network can give you advice, referrals, and support, but the value depends on who is connected to whom. In sociology, this pair often shows up when you explain why some people have more access to information or opportunities than others.
Weak Ties
Weak ties are the looser connections in a social network, like acquaintances or distant contacts. They matter because they often connect you to new circles and new information that your close friends do not have. Sociologists use weak ties to explain how jobs, ideas, and trends spread beyond a tight friend group.
Group Cohesion
Group cohesion is the sense of unity and closeness inside a group, while social network describes the actual web of relationships. A dense network can raise cohesion because members interact often and build trust. But a very cohesive group can also become closed off, which may limit new information and outside connections.
Ostracism
Ostracism happens when someone is ignored or pushed out of a group, and it directly damages their social network. Fewer ties mean less support, fewer chances to join group activities, and less access to information. This connection is useful when you analyze why exclusion can have real social and emotional effects, not just hurt feelings.
A quiz question might ask you to identify how a person’s ties affect their access to information, support, or status. In a short answer or discussion post, you might describe a student who hears about a campus job through a friend of a friend and explain that as a weak-tie advantage inside a social network.
If you get a scenario, look for who is connected, who bridges different groups, and whether the network is dense or scattered. Then connect those features to outcomes like influence, cooperation, or the spread of behavior. You may also be asked to compare two groups, such as a tight clique versus a more open network, and explain why they produce different levels of trust or opportunity.
A primary group is a small, close-knit group like family or close friends, while a social network is the broader pattern of connections around a person. A primary group can be one part of a larger network, but the term social network includes both close and weak ties. If a question asks about relationships across multiple groups, network is the better fit.
A social network is the pattern of relationships connecting people or groups, not just the people themselves.
Dense networks usually create more trust and coordination, while loose networks can spread new information farther.
Your position in a network matters because central connectors and brokers often have more influence and access.
Weak ties can be especially useful for hearing about jobs, events, and opportunities outside your closest circle.
Sociologists use social networks to explain support, power, diffusion, and exclusion in everyday group life.
A social network is the web of relationships linking people or groups together. In Intro to Sociology, the focus is on how those ties shape support, information flow, influence, and access to opportunities.
A primary group is a small, close relationship group such as family or close friends. A social network is broader and includes all the ties around a person, including weaker or more distant connections. A primary group can sit inside a larger network.
Weak ties are the looser connections in a network, like acquaintances or friends of friends. They often matter because they carry new information from other circles, which is why they can lead to opportunities that your closest friends do not know about.
People in the same network influence one another through repeated contact, shared norms, and social pressure. That is why habits, opinions, and even participation patterns can spread through a class, workplace, or peer group.