FreshBooks - The ideal accounting software for small business owners.
iDempiere - iDempiere Business Suite ERP/CRM/SCM done the community way.
Sage 50cloud - Sage 50cloud is the small business solution for everyday heroes. Plus, new customers enjoy 40% off!
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.
Zoho Invoice - 100% free online invoicing software for small businesses.
PHC FX - PHC FX is a comprehensive solution that offers a wide range of functionality at any price.