Description: AdRoll is an advertising platform that provides cross-channel ad retargeting and prospecting services. It allows businesses to show ads to people who have previously visited their website in order to drive them back to make a purchase.
Type: software
Description: Mailman is an open source mailing list management system. It helps manage email discussion and announcement lists, allowing users to subscribe and unsubscribe, and helping admins moderate and post to the lists.
Type: software
Pricing: Free