Web App native MySQL instances are in public preview; use JSON to CRUD your Azure SQL Sever records …
If you’re going to call Azure Storage blobs from AJAX, you may need to set Cross Origin Resource Sharing rules on your account.
To serve blobs directly from Azure via HTTP, set your container permissions and MIME types properly.
The Holy Grail of the MailChimp REST API: Sending Campaigns To Lists of Members. This post demonstrates using the MailChimp.NET.V3 wrapper library to do just that.