X4ToDo – Freelance Tools
http://www.x4todo.com/

Manage your time, your schedule and your work in a simple and intuitive way. The freelance tools that make easier to work and improve productivity. The Freelance Solution: Advanced To Do list; Project manager; Time tracking; Customers and contacts manager; and Calendar. For Teams: Sharing activities; Sharing customers and contacts; Internal Messages; and Activity reports filtered by activity and team member. For Billing: Personalized estimates as Pdf; Personalized invoices as Pdf; Summary of the payment status; and Management of earnings and expenses. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog. This will be added to Entrepreneurial Resources Subject Tracer™.