Today, polarkernel created a new top-level Q2A category called ''Recommendations''. Under this category users may post links to graduate/research level stuff they are presently reading (or want to read, have just discovered as worth reading, ...) together with a short description of the subject and their reasons why they are recommending it.
The idea is that this should allow (and encourage) you to share useful and/or exciting material even if you don't have easy-to-formulate questions about it and even if you don't know the subject already well enough to write a review.
The standard for the material linked to should be comparable to the standard applied for submitting papers to be reviewed in the Reviews section. But the presentation is considerably less demanding than a review. Some of the posts can perhaps later give rise to proper reviews, when you or another reader mastered the material.
The recommendations are formally posted as questions; subsequent discussion is either in form of comments or answers (depending on the weight of the contribution). Since this is an informal service, there are no reputation gains for upvoted posts in this category.
Edit: The hope is that this category may turn into a democratic version of ''This Week's Finds in Mathematical Physics'' of John Baez that made in the early days of the internet sci.physics.research a very lively place. Thus posts should not be restricted to only posting references to papers, but also to useful comments. And not only to mention papers, but also conferences, videos of Nobel price speeches, news about new particles found at CERN or new planets discovered, or everything else that's worth recommending to graduate students and professionals.