Google Drive - Access and sync your files anywhere
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.
Dropbox - Online Sync and File Sharing
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.