Clio - Clio provides a full suite of web-based practice management tools targeted specifically at the administrative needs of sole practitioners and small firms.
FreshBooks - The ideal accounting software for small business owners.
MyCase - Practice More, Manage Less.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
BillMinder - BillMinder is for tracking the record of the bill due date and making it sure that you will never again get late in paying your bills at due date.
Active Collab - Active Collab — Task management, Team collaboration, Time tracking & Invoicing app