What are some alternatives?
Zoho CRM - Flexible CRM for Small Business
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
Insightly - Insightly is the easy, powerful and affordable online Customer Relationship & Project Management Software used by over 400,000 small businesses world wide
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
NetSuite for Nonprofits - NetSuite for Nonprofits is a cloud-based donor management system for your nonprofit or social organization.
ZenDesk - Zendesk is a beautiful, lightweight help-desk solution.