Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Julie Desk - Virtual assistant using AI to schedule your meetings
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Perssist Virtual Assistants - Affordable virtual assistant service
Basecamp - A simple and elegant project management system.
Albert - Omnilauncher for Linux to help you quickly find and run apps and do other useful things.