Authorize.Net is famous online payment gateway, allowing you to connect your existing merchant account to process credit cards with very low fee.
Windows Azure Cloud Storage
For most security and relaibility, documents uploaded to Axess for your students, agents or classes, is being stored at Microsoft's Windows Azure Cloud.
MailChimp - Email Marketing
Mailchimp, one of the most known and used email marketing platform. Using their API (Application Programming Interface), we upload your students and applicants to your account at Mailchimp.
Axess integrates with Mandrill to send email messages such as warning letters or payment receipts. Mandrill is trusted email delivery platform, making sure that emails sent reaches to recepients' inbox, not the spam folder.