Journal of Neuroscience has a new section (at least, it's new to me) for graduate students and postdocs to write short reviews of recent papers. The format is described as being like a journal club, and as a venue for which junior scientists can "test their analytical and writing skills". Notably, the journal states that overly critical reviews of competitors, or glowing reviews of friend's work will not be considered (although the one I read was pretty glowing). And, they waive the submission fee for this format.
What a great idea. It's wonderful to see a high impact journal take a leadership role in training young scientists.