Linked by Albert-Laszlo Barabasi has opened up an incredible range of knowledge regarding the laws of networks. Albert goes far beyond the work of Duncan Watts in Six Degrees to explain the existence of many of the observed properties of complex networks and consequently the behaviour of complex systems. The random graphs, clustering, power curves, hubs, network growth, preferential attatchment, fitness, Bose-Einstein condensates are all introduced to the reader. Ultimately the book is an introduction to the discovery of scale-free networks and reveals that all the past models based on random networks are wrong.
I highly recommend this book to anyone wanting to learn the current understanding of networks and the implications.