By Harold Pasher, Mark McDaniel, Doug Rohrer, and Robert Bjork. Published in Psychological Science in the Public Interest, vol 9 (3), Dec 2008, pp. 105-119. The authors looked at scientific evidence related to learning-style assessments in education. They concluded that evidence did not bear out the use of such assessments, but also point out that many versions of learning styles have not been tested at all (and thus there is no evidence).
This entry, by Mark K. Smith and published in the Encyclopedia of informal education, provides background on Howard Gardner and outlines his theory of multiple intelligences. Further reading and references are provided.
This site is the "home" of the Myers Briggs Type Indicator (MBTI) personality inventory, which is used both in the workplace and to identify learning styles in students.