If you decide to try the wonderful Go language, but do not know where to start, you have a direct route to this post, where I tried to list all the resources necessary for beginners. First of all, you need to familiarize yourself with the basics:
Go challenge.Learn Go by Go problems! - Be sure to participate in one of the chelendzhy, even if you are no longer a novice. This will allow you to get acquainted with something new and get feedback from professionals. For example, in the latter one had to write a mobile application for android. (En)
The Go Programming Language is a book from Kernighan, very high quality and pleasant. Here is the first chapter for your reference (the book will be released on October 30);
Slack chat Russian gopher community - more than 500 people are already sitting in the chat, interesting topics are often discussed. You can ask absolutely any questions in the #school channel. The #job channel has a lot of jobs;
Russian podcast about Go - in the podcast there are often guests from companies such as docker, dropbox, cloudflare, coreos, google. There was also the famous Dmitry Vyukov and told all the secrets about the Go runtime.