If anyone's curious about Network Science/Graph Theory in general here's a free online textbook used by a grad student friend of mine
(FWIW, I had previously read some Barabasi papers and had come away seriously unimpressed, see also https://news.ycombinator.com/item?id=9555547)
Yes, scale-free networks (and so on, and so on), are oversold. Is his work really that bad though?