Emotional Intelligence (EI), also known as Emotional Quotient (EQ), is the ability to acquire and apply knowledge from one's emotions and the emotions of others in order to clearly guide one's thinking and action. This capability enables people to make good choices in-the-moment and have more effective control over themselves while positively influencing others.
Originally described by a number of psychologists including Howard Gardner, Peter Salovey and John Mayer, EI gained media attention in 1995 with the publication of Daniel Goleman's best-selling book, Emotional Intelligence. Offering a new way to understand and improve people's performance, EI can be applied to a broad range of organizational development areas such as leadership development, management styles, change management, employee engagement as well as many human resource issues such as hiring, promoting and retaining talent.
EI research sparked the development of a number of EI theoretical models, each with a unique view or set of competencies, as well as a number of EI assessments. Some researchers claim that EI can be learned and enhanced through Emotional Intelligence training and coaching, the results of which should be measured at the individual, team and organizational levels. You'll find bloggers talking about EI at sites like John M's Blog and Emotional Intelligence Leadership.