If you like the track changes and editing options of MS Word but the cloud based features of Google drive then you might be interested in Draft.
Draft is a free writing program that integrates with cloud based storage such as Dropbox and Google drive. It allows you to search for different revisions, find missing bits of text, and have complete control of collaboration.
Multiple people can review and edit your document, while you maintain complete control over the final product. If you are a Chrome user, there is a handy dandy extension that allows you to turn any field into a Draft document and then past the contents back into your document when you are done. (please oh please a Firefox version!)
There is even a magic “Ask a professional” button. I am definitely adding this to my try pile.
If you have been using Draft, drop a comment or a line to let us know how you like it and if you have any tips or hints.