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.
Avaza - Beautiful Projects, Timesheets, Expenses, Quotes & Invoices for Small Businesses
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.
Invoice2go - Full featured, invoice and estimate solution with full mobile support.