Currently academics and those who want to reinvigorate it with a more web discussion based scholarship have a common enemy in the academic publishers, who are preventing academic papers from refereed journals being freely available on the web, because they want to preserve their tradition of selling them.
Discussion of JStor moved to that page.
Another reason these academic publishers are stitching up science, is they exclude people like me who have been in academia, but are now outside and working in a different industry. I don't have access to an academic library, or the time to make personal contact with authors and ask for pre-prints. But if I could download papers easily and post comments, I might.
Ex-academics are wholly wasted by the system.
An article by Prof. James Boyle on excluding non-scholars from the system: http://www.james-boyle.com/mertonianism.pdf
See also : OpenAccess
Economist says that peer review is letting through statistical errors : http://www.economist.com/science/displayStory.cfm?story_id=2724226
Kent Pitman on "Why I'm not an ACM Member" : http://www.nhplace.com/kent/PFAQ/acm.html
"I long ago renounced my ACM membership and will have nothing to do with the organization. The ACM made me sign an ethics pledge to become a member, and I felt my obligations under that pledge required me to disassociate myself with ACM itself because I personally feel many of its practices are unethical."
: thanks Tayssir. Good quote / article -- PhilJones
Seb also compares : http://paulandrews.manilasites.com/stories/storyReader$121
See also AcademiaVsNewMedia
Added 2018-10-08 : Originally 2018-07-26