Systems science is the interdisciplinary branch of science which is the study of the nature of complex systems in nature, science, and society and the development of interdisciplinary foundations in such studies as biology, medicine, engineering, and the social sciences.
Regular Blogs
Describes chaos theory in easy to understand terms and goes deeper than what the non-math public is used to going into the theory.
http://headinside.blogspot.com/
Academic blog contains entries about chaos theory including those about how chaos theory intersects with real life.
http://www.insidehighered.com/
Written by a professor of mathematics at the University of California at Santa Cruz, this blog is mostly about chaos theory and his thoughts about it and their relevance to life, such as in bubbles and crashes as well as dynamical systems as models for long term behavior.
http://ralphabrahamchaosthoughts.blogspot.com/
Yet Another Blogging Mathematician
A PhD student in math writes about the broad file of algebraic combinatorics and maintains a category which is full of entries about chaos theory.
http://yabm.wordpress.com/