blog.YOU.com

YOU.github.io works great but why not blog.YOU.com? Buy a domain name from a registrar. I used GoDaddy. On the godaddy site find Domains > Manage my domains > CName (Alias). Configure the Host: blog to Points To YOU.github.io

Here is a snapshot of mine: Go Daddy cname screenshot This can take a while so be patient.

Do not forget to commit a CNAME file to your site that has the contents blog.YOU.com

See: