Best in class privacy policy

I'm looking for opinions to help rate the best privacy policies of Internet companies according to their business category. I'm looking for candidates for best in class (of their category).

I'm not asking you to download or display them here, as that might be considered a breach of someone's proprietary rights.

What I am asking for is the name of large companies and large organizations with the link to their publicly available privacy policy.
Their categories include, but are not limited to, the following:
online retail
browsers
email hosts
search engines
social media
banking and finance
other online services

Have I left any important categories out?

I'm sure you'll find my responses to those picks insightful.

Thanks

WS