1. Probably I went to gitlab.org, I did not enter it, firefox cached it. Because now it redirected me to http://about.gitlab.com and it asked me to sign in.

3. I will send you the email later, one or two days. I am currently writing an intro book to VueJS. As soon as I finish it, I'll shoot you an email. (https://github.com/thewhitetulip/intro-to-vuejs/ only one chapter is written yet)