MailChimp is an email marketing service provider, founded in 2001. It has 3.5 million users that collectively send over 4 billion emails a month through the service.
The company uses an ape as a logo and includes numerous ape-related graphics and jokes on its website and in its communications. There is an option for users to turn these off. The chimp imagery reflects the lighthearted style central to the company's culture.
MailChimp began as a paid service and added a freemium option eight years later. It was originally going to be called ChimpMail, but the name was changed after the company discovered it could not get that domain name.
Here at compojoom, we use Mailchimp to deliver our Newsletter campaigns to you. We truly love the service and believe that if you give them a try, you'll love them too. You can test them completly free for up to 12 000 emails / per month to up to 2000 subscribers. So if you need to send newsletters to your users - check them out!
If you want to learn more about Mailchimp and its service have a look at this page. It will give you a better idea of the mailchimp service, since statistics never lie :).