FreshBooks - The ideal accounting software for small business owners.
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.
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.
MyCase - Practice More, Manage Less.
Bill4Time - Your Complete Time and Billing Solution. Simplify your billing. Recover lost revenue.
Clio - Clio provides a full suite of web-based practice management tools targeted specifically at the administrative needs of sole practitioners and small firms.