At the moment, I am aware the American Mathematical Monthly and Mathematics Magazine (from several years) and Proceedings of the American Mathematical Society (from one year, approximately) are using the double-blind review system. I find it very useful, especially for young researchers.
Where can I find the list of similar math journals which uses the double-blind review system?
Ps. Is there some reason why most math journals prefer single-blind review system?
Ps2. An interesting related thread here.