Yellow Pages - YP.com local search connects you with over 19 million local businesses.
Invoice Ninja - Invoice Ninja is a free, open-source solution for invoicing and billing customers.
Wand.com - Wand.com is a business listing platform that will let you collect information about the required products and services.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
N49.com - N49.com is a leading platform in Canada that provides an innovative way to engage in local business via sharing, reading, writing, and sharing reviews of it.
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.