Xactly - Xactly is a cloud-based, incentive compensation solution for employee and sales performance management.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
CallidusCloud Commissions - CallidusCloud Commissions eliminates costly payment errors with automated commission calculation, models the impact of new incentives and plans resulting in cash allocation, and manages retroactive changes to compensation plans.
Mailman 3 - Dedicated Mailman 3 installation. Unlimited lists/configuration. Free subdomain at mailman3.com. Dedicated support for list admins.
Performio - Sales Commission & Incentive Compensation Software
MailChimp - MailChimp is the best way to design, send, and share email newsletters.