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.
CodeGophers - Your personal army of programmers
AND CO - AND CO helps freelancers, entrepreneurs and other small businesses run their business smarter.
Text A Coder - Send a text, get a developer and project manager instantly
Coworkly - Coworkly is a free tool for creative contractors to put freelance bookings, payments, & work goals on auto-pilot!It's a portfolio, scope of work, & invoice bundled into one simple flow that allows clients to reserve your time in a few easy steps.
Snappa - The perfect graphic design tool for digital marketers.