Snap network datasets
Coauthorship and Citation Networks
Who trusts whom data at Trustlet
Mark Newman's pointers
a C++ libary for working with massive network datsets (Windows, Linux, Mac).
a program for large network analysis (Windows or Linux via Wine).
an exploratory data analysis and visualization tool for graphs and networks.
software framework for information visualization (Linux, MacOSX, Windows).
software for social network analysis (Windows).
a graph visualization software
a python package for the study of the structure of complex networks.
a large-scale network analysis, modeling and visualization toolkit
tools for fitting heavy-tailed distributions to data
Some websites that may be interesting to do analysis on: