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
Planning Center - Find the information you need to follow up with your congregation and gain insight into your church members, all in one place.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
iMIS - iMIS membership & fundraising software from ASI: An upgradeable software solution allowing you...
Olark - Real-time chat and monitoring of your website visitors through Google Talk and Jabber.
Giveffect - Ideal for medium to large nonprofits, Giveffect is an all-in-one nonprofit software that streamlines your entire organizational operations.