Got any good examples of thank you pages and welcome emails?

I'm doing some digging around and looking for some good examples of newsletter thank you pages and welcome emails.

This is full-on research mode for me at the moment, I've been looking around at a few different newsletters and checking out their thank you pages and that welcome emails to see what they look like.

Have you any good examples of good thank you pages and welcome emails that look like they are really well designed?