Social networks have changed how people interact and connect with friends. The document discusses different types of connections people can have on social networks, including colleagues from work and classmates from school. Maintaining these relationships online presents both opportunities and challenges in how social interactions take place.

1. social network,change& challenge

2. Everything is…friend

3. Who’s your friend on social network? Colleague Colleague colleague colleague colleague colleague colleague colleague colleague colleague colleague Colleague colleague colleague colleague colleague colleague colleague colleague colleague colleague Classmate/schoolmate Colleague colleague colleague colleague colleague colleague colleague colleague colleague colleague Colleague colleague colleague colleague colleague colleague colleague colleague colleague colleague