Extrapolation [Included in membership]

Three issues per volume year. The oldest journal in the field, with critical, historical, and bibliographical articles, book reviews, letters, occasional special topic issues, and an annual index.
http://www.liverpooluniversitypress.co.uk/index.php?option=com_content&v...

Science Fiction Studies [Included in membership]

Three issues per volume year. Includes critical, historical, and bibliographical articles, review articles, reviews, notes, letters, international coverage, and an annual index.
http://www.depauw.edu/sfs/

SFRA Review [Included in membership]

Four issues per year. Includes extensive book reviews of both non-fiction and fiction, review articles, listings of new and forthcoming books, letters, SFRA internal affairs, calls for papers, works in progress, and an annual index. It is available to all members electronically; those who want print copies can order them through the SFRA website in a print-on-demand format (paid separately).