Google Docs brings your documents to life with smart editing and styling tools to help you easily format text and paragraphs. If your team members all have Google accounts (and why wouldn't they?), sharing files and collaborating on them simultaneously and in real-time is a snap with Google Docs.
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Compiling activity updates in one place lets you can keep track of who has edited each file. Drive starts you with 15 GB of free Google online storage. Files on Google Drive can display on multiple devices.

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Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily.

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