Google don't use their own stuff - so why should you?
This amused me today from a friend of mine who noticed this. A job application on the Google website for the "Executive Assistant to the Executive Director, Google.org - San Francisco"
Check out point 3 from the mandatory job qualifications:
5-8 years administrative experience in a fast-paced, high-tech environment; non-profit experience is a plus.
BA/BSc degree from a top-tier university.
Proven mastery of Office applications, including Word, Excel, PowerPoint and Outlook.
Interest and experience in using technology to improve work efficiency.
Interest and experience in interacting with all levels and departments within a company - to include working with several field offices, domestic and international.
Exceptional written and verbal communication skills
Strong organizational skills, detail-oriented, and the ability to handle multiple priorities.
The implication seems clear - if they have "interest and experience in using technology to improve work efficiency" they'll need to be Microsoft Office experts.