Vimeo's terms of services clrearly states:
Non Commercial Use Only
If you need a site to power your business' videos, please try one of the many commercial video hosts out there. We remove commercial content that violates our Guidelines without warning.
However, it seems Dropbox is using a Vimeo video on its homepage to showcase their product. Is this against the terms of use? Is this tolerated?
[I'm asking because I am considering to do something similar for my homepage.]