Social Networks through computer networks Types of Networking

Social Networks …through computer networks…

Types of Networking • Networking for a job… • Networks of people trying to do a task • Networks of organizations – The third mode • Hierarchical • Market

Social Networks • “The term was first coined in 1954 by J. A. Barnes (in: Class and Committees in a Norwegian Island Parish, in Human Relations”) • Social Network growth 2004 through 2005 (in thousands):

…the growth is concealed by the big sites…

Types of Social Networks • VRML Worlds – Avatara’s Home @ Pointworlds • Game sites – Yahoo spades – Star Wars Galaxies • Blogs – Livejournal • Career Networking – Linkedin • Friendship Networking – Facebook

Contact networks of daily communications

Flickr network of 2367 people (Flickr is a picture sharing system)

Indices (my selection) • Betweenness – An intermediary. The extent to which a node is directly connected only to those other nodes that are not directly connected to each other • Closeness – Measure of nearness to all other individuals • Degree – Number of ties to other actors • Radiality – Content-focused. Quality of information passed through • Structural equivalence – Common set of linkages to same others. Also, being at the same level in the organization • Structural hole – Lacking connections in the network • Homophily – Degree to which people in a network are similar to each other

Team Work / Newsminutes

Where does it end?