Timestamp - Timestamp is real-time project, time and expense tracking in the cloud. Try Timestamp for free.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Timely Time Tracking - Timely is a time tracking application for productive teams.
Futuramo Time Tracker - Futuramo Time Tracker is a time tracking solutions designed for freelancers and teams.
timr - Digital employee and project time tracking for SMEs