MailChimp 2012 Annual ReportMailchimp
The MailChimp annual report is presented in a brilliant One Page responsive site with tons of color and infographics!
This website has unfortunately been redesigned or gone offline, so I have removed the direct link to it. The screenshot below hopefully preserved enough of the design but if you are really keen to inspect further, try this Archive.org link. FYI: the site was first featured on 15 January 2013.