Mint.com is an online service, also available as application for smartphones, that offers for free an accounting platform for small business owners.
Is available only for US and Canada users, was released in 2008 and in 2009 has become the property of Intuit (owner of QuickBooks).
Set budgets, track income and expenses, keep all your accounts in a single place and manage them from Mint.com, view detailed reports and graphs, organize your money.