Koenigsberg             Bridges of Koenigsberg from Euler's times
UKfaculty               Friendship network of a UK university faculty
USairports              US airport network, 2010 December
enron                   Enron Email Network
foodwebs                A collection of food webs
igraphdata-package      The igraphdata package
immuno                  Immunoglobulin interaction network
karate                  Zachary's karate club network
kite                    Krackhardt's kite
macaque                 Visuotactile brain areas and connections
rfid                    Hospital encounter network data
yeast                   Yeast protein interaction network
