The structural evolution of the Web 2.0 service network.

The article presents research on the mechanism of Web 2.0 service network's structural evolution. Findings of the study indicate that evolution of the service network adopts the preferential attachment rule though its exponent is found lower than for the other networks after a preferential attachment rule. It points out that the power law distribution exponent of the network is lower than for the other networks although it evolves to a scale-free network. This is correlated with the dependence of the interconnection between nodes on their property.