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.
Priori - Curated legal marketplace for SMBs and startups
Hours - Boosting productivity through live, virtual co-working.
Timo - Time and task management in your browser ⏲
Futuramo Time Tracker - Futuramo Time Tracker is a time tracking solutions designed for freelancers and teams.
Calendarist - Time blocking companion for Google Calendar