[mattmanser]

Google has similar guidelines:

http://developer.googleapps.com/branding-guidelines

[terinjokes]

* Use the trademark only as an adjective, never as a noun or verb, and never in the plural or possessive form.

[... the very next line ...]

* Use only Google-approved artwork when using Google's logos.

[verroq]

>This includes modifying a Google trademark through hyphenation...