Pass by pointer vs pass by value in Go http://goinbigdata.com/golang-pass-by-pointer-vs-pass-by-value/
go with test https://github.com/quii/learn-go-with-tests
Go by Example https://gobyexample.com/ .
Awesome go https://github.com/avelino/awesome-go .
Visualizing Concurrency in Go http://divan.github.io/posts/go_concurrency_visualize/ .
pass-by-pointer vs pass-by-value http://goinbigdata.com/golang-pass-by-pointer-vs-pass-by-value/ .
Concurrency is not Parallelism https://talks.golang.org/2012/waza.slide#3 .