indyank - 4:14 am on May 13, 2012 (gmt 0)
They generally aren't editorially given and come as standard with the theme
Most or almost all of Google's model sites or "Google's high quality sites" do not give out links editorially. They nofollow them. It is a disgrace.
And you should understand the difference between branded attribution links and given links with (money) keywords as anchor text.
How do offline businesses promote their brands other than advertising through traditional media? The do it by giving free T-shirts and other stuff that carry their brand names, offering free services or free camps or free training etc.etc. This practice of web designers is no different.