Since this is related I'd love to share a similar project I am working on: http://www.betterfrontend.com - think of it as curated best-practices for Front-End Development.
Some good content here, but the rails specific stuff feels out of place on a site that purports to be focusing on the frontend. I'd consider either making it backend agnostic, or rebrand the site as Better Frontend for Rails developers.
Valid points. My vision is most that popular frameworks have their own best-practices. Initially starting with rails is just easier to target and be used for. Thoughts?