On July 24, Science published a special issue on complex systems and networks.

Science - Complexity cover

The issue description from Science:

In the 24 July 2009 issue, Science highlights how network analysis is allowing us to understand how the world works from new vantage points. Perspective articles examine the foundations of network analysis and its applications across disciplinary fields from economics to ecology; News stories look at the use of network tools to study social phenomena; and a Review article explains how molecular biologists are using networks to analyze basic cellular circuitry. Science Careers highlights careers in network science and the 28 July issue of Science Signaling delves into the dynamics of cell signaling networks.