This article by the American Society for the Advancement of Project Management discusses the relationship between emotional intelligence and competency in project management.
Exforsys provides free online training in business skills. The module on EI has 11 units ranging from "what is EI" to "business relationship management."
This site has rich resources on EI, including articles grouped by category, references, and even some reprints. A good place to look for seminal resources such as Goleman.