Scholarpedia – Agent-based modeling

Wikipeia – Agent-based model

Steven F. Railsback and Volker Grimm – Agent-based and Individual-based Modeling: A Practical Introduction

Charles M. Macal and Michael J. North – Introduction to Agent-based Modeling and Simulation

Gilbert, N & Terna, P. (1999)  – How to build and use agent-based models in social science.

Robert Axelrod and Leigh Tesfatsion – On-Line Guide for Newcomers to Agent-Based Modeling in the Social Sciences