Fairly comprehensive tutorial on Piaget from Margaret Anderson,
The Regents' Center site at the University of Northern Iowa
has good articles and resources on Piagetian constructivism for teachers,
along with an annotated bibliography on constructivist education.
Al Cheyne's (University of Waterloo) site with links to electronic
papers and other resources on Vygotskian thought.
A journal devoted to Vygotskian/Sociocultural Theory.
Active research laboratory (Michael Cole et al.) at University
of California, San Diego, with good information and links related to Vygotsky.
Provides free worldwide access to the primary scholarly and scientific
research literature on a scale that is likewise impossible in paper.
A list of the top 100 most influential works in the 20th Century.
Nice table of different theories/conceptions of intelligence
with some references, links, and brief descriptions. From the Great Ideas
in Personality site, Northwestern University.
A more detailed description of Gardner's Theory of Multiple
Intelligences, by Lynn Gilman
Book reviews on Richard J. Herrnstein and Charles Murray's
"The Bell Curve: Intelligence and Class Structure in American Life."