Cold Spring Harbor Perspectives in Biology (CSH Perspectives) is a monthly online publication from CSHL Press, with an outstanding editorial board (featuring renowned scientists like Tom Cech, Mark Estelle, Peter Lawrence, Tom Misteli, Paolo Sassone-Corsi and David Spector just to name a few), analyzing progress in emerging areas of molecular, cell, and developmental biology, genetics, evolutionary biology, neuroscience, cancer biology, and molecular pathology.
Interestingly, articles will be organized as "Subject Collections", which will "gradually accumulate articles as new issues of the journal are published and, when complete, each will represent a comprehensive survey of the field it covers".
This is a very attractive feature and I'm confident, considering its board, that the journal will keep up with the rapidly advancing pace of molecular biology.
Also you can follow the journal on twitter (http://twitter.com/cshperspectives) which is always a great addition.
We'll keep our eyes open.