Integrate with MailChimp for marketing and feedback

OR provide an API for people to write their own integrations.

I would love to send people email campaigns from MailChimp based on OT activity.
-- Completed projects could be followed up with feedback surveys
-- Email and postcard campaigns for prospects in OT automatically updated when they become clients
-- Email campaigns to clients based on project types
-- Marketing campaigns based on social media and website interactions linked to OT data