Currently, articles from the Roeper Review can be downloaded freely from http://www.informaworld.com/smpp/title~db=all~content=t792156624~tab=issueslist . There is a lot of interesting G&T research.
Quoting the site,
"The Roeper Review is an international, quarterly, refereed journal publishing scholarly articles that pertain to practice, policy, applied research, and theory in all dimensions of gifted education.
...
The Roeper Review periodically runs special, themed issues on important topics in the field. Examples of past and forthcoming special issues include:
�Expanding the Conceptual Foundations for Gifted Education
�Special Programs for Gifted Students
�The Neuroscience of Giftedness
�Global Awareness and the Gifted
�Dabrowski's Theory of Positive Disintegration
�History of Gifted Education
�Gifted Teachers
�Intelligence Theories in Gifted Education
�Underrepresentation in Gifted Education
�Specialized Science, Mathematics, and Technology High Schools"
