Invoice Ninja - Invoice Ninja is a free, open-source solution for invoicing and billing customers.
Brushd - Build An Online Creative Portfolio Effortlessly.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Cargo - Cargo Collective is a web publishing platform that creates and offers accessible tools online.
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Crevado - Crevado makes it super-easy to create your online & mobile portfolio website.