Against Gardner - A critique, by Julian Darius, of Howard Gardner's theory of multiple intelligences.

Challenging g-Mania in Intelligence Research - This paper by Werner Wittmann and Heinz-Martin Süß discusses the usefulness of the lower-level facets of a hierarchical model of intelligence in predicting real-world criteria.

Diversity of Intelligence - Contains resources about possible reasons for the difference in intelligence, taking into consideration many factors.

A Framework of Intelligence - A collection of definitions that integrates the theories of Sternberg, Gardner and the classical psychometric approach.

Gifted Development Center - Site of Linda Silverman, a counselor and author who pioneered the concept of visual/spatial intelligence.

Great Ideas in Personality - Intelligence - Introduction to theory and research on the science of intelligence, with links to research papers, websites, and other reference sources.

How to Increase Our Intelligence - Based on the processes in the artificial intelligent system, we show how persons can be more efective, more intelligent, in reaching their objectives.

Human Intelligence - Resources for studying the historical development of intelligence theory including biographies, articles, and a timeline, hosted by Indiana University.

The Integrated Theory of Intelligence - Contains the original publication "Integrated Theory of Intelligence". It is considered to be a groundbreaking theory, and of great human import.

Intelligence Amplification - Explains ways to increase the mental abilities of humans to new levels, and possible methods such as cognition enhancing drugs and bionic enhancements, etc.

Intelligence and Psychological Testing - An undergraduate psychology course focusing on the history, theory and research about intelligence. Includes lecture notes and activities.

Intelligence Definition - Discuss possible answers to questions like "What is intelligence?", is intelligence inherited? is it possible to increase our intelligence?, also contains intelligence IQ tests.

Intelligence, Intuition and Creativity. - The definition of intelligence in the Global Cognitive Theory. The best concept to define intelligence is the group of basic and abstract relational functions of Life.

IQ Comparison - Includes a number of tests for evaluating and converting IQ scores, as well as a list of mean scores in different countries.

IQ Test: Does it Measure Potential? - A critical review on the use of IQ tests in diagnosing children with learning disabilities.

Is Intelligence Distributed Normally? - A paper by Cyril Burton on the distribution of IQ scores, arguing that highly gifted individuals may have been underestimated due to the assumption of normal distribution.

Mainstream Science on Intelligence - Wall Street Journal article, signed by multiple psychology professors, supporting the conclusions in Herrnstein and Murray's "The Bell Curve".

Multiple Intelligences beyond Class - Contains resources on how to use part of the brain never before used, research, tips, tools and practical strategies to help form new neuron pathways towards a higher vision for life.

Vid Pogachnik - Intelligence - An introduction to the theory and measurement of intelligence, by the psychologist Vid Pogachnik.