I'm on Chrome Version 35.0.1916.153 on Mac. Same error. I also have a blank page (other than the navbar at the top). Also, probably more importantly: "XMLHttpRequest cannot load http://api.grasswire.net/v1/newsfeeds. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://grasswire.com' is therefore not allowed access. "
Cool. Thanks for putting this out there. I like it overall, but stepping through the beginner's sequence by highlighting different squares doesn't work great. Separate from the exhaustive glossary view, you could have "track" views where you could guide beginners through different paths, like an all JavaScript path that takes users from front-end stuff to Node to Heroku or whatever. Like Codecademy's tracks. Beginners love that stuff.
The hostility to Quora seems a little excessive. Is it so bad to just sign up, then be able to use it from then on? I don't see why someone would actually be offended by this kind of thing.
I like how it organizes information spatially, like WorkFlowy. I much prefer this visual organization to tags, for example. That said, I found it hard to understand what it was, even though I'm a long-time WorkFlowy user and am very interested in this kind of thing. I wrote a post where I talked about organizing information visually in more depth here: http://colemanfoley.quora.com/Mind-Mapping-with-WorkFlowy (Registration NOT required to read).