Simple Customer is an open-source online customer database that allows you to easily manage your clients and customers along with adding notes and tasks & multiple contacts. Built with php, Simple Customer is light-weight and easily extensible. Keeping track of your customers & clients has never been easier. Features: Customer & Client Management Calendar Add Notes/Tasks to Customers Multiple User-Levels (Admin/Publisher...) Multiple Contacts per Customer listing Advanced Search & Admin Options Lightweight (55kb) Export list to CSV file