To understand a community, knowing more about the notable people in that community is a great place to start. 1000 people is a small data visualization project where I wanted to visualize Wikipedia entries of people in a particular field.
Data was collected from dbPedia and converted into a nodes links database. Each node represents a person, and the links are structured data entries about them. CSV data conversion to JSON node-link database was done through a Python script (thanks to Anul Kumar Sinha!) which was then visualized by Prateek Solanki in d3.js
As the name suggests it's a work in progress.