HubSpot CRM - Free CRM software for small businesses.
1CRM - 1CRM is an All-in-One CRM solution for sales, marketing, project and order management. Download 1CRM Free, and find out why it's right for your business.
17hats - The all-in-one business system for entrepreneurs.
Pobuca Connect - Connect with your contacts.
OpenCRM - Hosted CRM solution providing an intuitive interface and Outlook integration.
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses