VirBELA - Remote communication and collaboration platform for online teams, classes, events and more.
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.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Nifty - Manage projects, work, and communications in one place.
Remote Stories - Anonymous stories from remote workers
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.