Disney runs over 1400 instances according to this presentation: http://www.10gen.com/presentations/mongosv-2011/a-year-with-mongodb-running-operations-to-keep-t

Disney runs over 1400 instances according to this presentation: http://www.10gen.com/presentations/mongosv-2011/a-year-with-mongodb-running-operations-to-keep-the-game-magic-alive http://www.10gen.com/presentations/mongosv-2011/a-year-with-... Also foursquare runs a very large MongoDB deployment. http://www.10gen.com/presentations/mongodb-foursquare-cloud-bare-metal http://www.10gen.com/presentations/mongodb-foursquare-cloud-... Craigslist: http://www.10gen.com/customers/craigslist http://www.10gen.com/customers/craigslist Shutterfly also has a very large deployment: http://www.10gen.com/customers/shutterfly http://www.10gen.com/customers/shutterfly