engagor.comSoftware by Engagor
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Invision Community - Invision Community is a flexible, integrated set of apps for building communities on the web.
Froged - One click solution providing easy-to-use marketing, sales and support services to turn website visitors into happy customers.
XenForo - Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.