We're excited to announce a partnership with Rackspace, as part of their new initiative to promote quality services.  This initiative includes a few other Y Combinator companies like Olark and Cloudkick. As a partner, we have a featured application listing at http://tools.rackspacecloud.com so that other Rackspace users can find out about Mixpanel.

This is just the latest example of how helpful Rackspace has been to us.  We've had a great experience with the online support, as well as personal attention from Rackspace staff via the phone whenever we've needed it.  When you add in the great deal they gave us on servers, you get a very happy startup.