I totally agree re: copy-paste. I wasn't clever enough with CSS to do this straight away but it's high on my list: https://github.com/mmcgrana/gobyexample/issues/12.
Also agree that a learn more section could be good - I'll noodle on it.
Also agree that a learn more section could be good - I'll noodle on it.
I have a few suggestions.
Make the code easily copyable. Under Chrome, at any rate, if you select the code you can't help but select your comments to the left of the code. I think that people running through the examples should type everything in line by line, but some people will prefer to copy and paste.
Also, it would be great to have some "where to go from here" links. I've run the examples, now I want to write some useful code. Where should I go next?