In January a site went live called readingroom.info. I suspect due to the timing and the subject matter it was a student project. The idea was to write summaries - no more than 500 words - of scientific papers and allow people to comment on and discuss them. I thought it was a neat idea. They had some ideas for incentivizing writers and so forth, but I didn't have time to contribute anything until this summer, by which time the authors had apparently lost interest. I sent in a summary of a paper, but after several weeks it had not been approved by the moderators. Maybe it just wasn't that good!
The paper is Trinity: reconstructing a full-length transcriptome without a genome from RNA-Seq data.
This is what I sent them: