Schema.org Organizational markup Issue

Question

I was trying to implement this for my website:

http://googlewebmastercentral.blogspot.in/2013/05/using-schemaorg-markup-for-organization.html

I have a quick

Answer 1

This question is more than one year old, but since I found it via Google, I figured it will keep popping up in the future - so here's my update of the existing answers:

You don't need to worry about visible elements anymore, you can simply use this instead:

As far as my understanding goes, you only need to add this code to the homepage.

(This information was added to the OP's article on 21 October 2014.)