Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Flocknote - Flocknote helps super duper churches with their members.
UseResponse - Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system
Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
ChurchSuite - ChurchSuite is a cloud hosted, web-based church management system, ideal church database software for churches.