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Ripple is an interactive audience response system that allows presenters to survey audience members in real time communication through their mobile devices. The project is maintained by the Interactive Media Group of Univeristy of Oregon Libraries.

Ripple Website


  • NodeJS v0.8.x
  • node-gyp (npm global install)
  • MongoDB > v2.2
  • G++ Compiler
  • OpenSSL Developers Libraries (openssl-devel)


  1. Install npm package

npm install -g ripple-core

  1. Make a directory to hold ripple
  2. Install Ripple - In that directory, run ripple install

ripple install

  1. Start Ripple

ripple start

  1. Checkout the site at localhost:8080.


All files are covered under the GPL v3 license. Please see LICENSE.txt for specifics.