Check out DocsFlow from em software.
http://emsoftware.com/products/docsflow/
DocsFlow, a plug-in for InDesign, for the first time combines the collaborative editing power of Google Docs with the layout power of InDesign, adding its own dynamic linking and sophisticated merge technologies to supercharge your editorial and production workflows.
DocsFlow Place menuWith DocsFlow, you place online Google Docs documents (including tables and graphics) and spreadsheets (Pro version) as InDesign story contents, just like normal text or spreadsheet files. (You can also place by dragging and dropping files from Google Drive.)
More importantly, DocsFlow maintains a dynamic link so it can intelligently merge Google Docs changes into the InDesign story contents on each link update, rather than just replacing the story. The Pro version provides a two-way link so you can push your InDesign story changes back to Google Docs.
So you can format, layout, and edit in InDesign, while your authors and editors continue creating and editing story content together in real time using Google Docs documents, all without ever losing work. Your authors and editors are no longer “frozen out” once layout begins.
~Barb
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