PNAS -- Pennock et al. 99 (8): 5207 Table 1

Table 1. Mixture parameters $alpha$ , modes 2m(1 $-$ $alpha$ ), and power law tail exponents $gamma$ = 1 + 1/ $alpha$ for inbound links to category-specific homepages, and for inbound and outbound links on the web as a whole

Data set $alpha$ Mode $gamma$

Companies 0.950 136 2.05

Newspapers 0.948 87 2.05

Web inlinks 0.909 0 2.10

Universities 0.612 839 2.63

Scientists 0.602 7 2.66

Web outlinks 0.581 8 2.72