Ego network analysis refers to the analysis of ego nets -- the cloud of actors and relationships around a focal person. Ego network data can be collected via a personal network research design (in which the whole network is not collected) or extracted from data collected via a whole network design.
Individual social capital
brokerage
Structural holes & density
Halgin, D.S., & Borgatti, S.P. 2012. An Introduction to Personal Network Analysis and Tie Churn Statistics using E-NET. Connections 32(1): 37-48. [pdf]
Burt, R. The network structure of social capital. [pdf]
Burt, R. Measuring access to structural holes. [pdf]
Borgatti. 1997. Structural holes: Unpacking Burt's redundancy measures.Connections 20(1) [html]
Slides
egonetII.pdf
Data
neogen dataset
Brief introduction to personal network analysis [mp4]
A socnet discussion on the origins of the term "social capital" [html]
visit the Social Capital page