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Most scholars today are very familiar with lower-level, simpler, collaborative writing tools like [Google Docs] (http://www.google.com/docs/about/). Authorea and its ilk can be thought of as more sophisticated versions of Google Docs, in that they include the ability to include equations, figures, limited interactivity, and that they offer better version control.   Here is a comparison of some key features of the current three top offerings from Scientists, [Authorea](http://authorea.com), [writeLaTeX](https://www.writelatex.com), and [shareLaTeX](https://www.sharelatex.com).  (insert table, to be created, here--**Alberto**--can you do that? columns are the three products-- rows should surely include: LaTex, Reference Handling, Markdown etc., code support, interactive figures, audio, video, version control, offline syncing/dropbox integration, etc.)  **Josh**--should we discuss business models for these services? Mention that open shared papers are free? Talk about Universities and/or Journals having special, customized, subscriptions?  **JP:** -- I think that might be something we ask the group about on the 6th? Seems like it might be beyond the scope of our charge