MoneyScience Financial Intelligence Network
This wide-ranging site is devoted an "open-access resource for
academics and practitioners working in finance and economics, physics,
applied mathematics and computing." Rather than a peer-reviewed
journal, they see themselves as an aggregator for research and
writings in their area. They offer numerous features: links to
articles and blogs, calls for papers, a wiki, a forum, and other
features. It is run by Jacob Bettany, who used to be the publisher of
Quantitative Finance.
http://www.moneyscience.org/