This reminds me of a video I saw about scaling with ruby on a niche social network (http://zenbach.com/scaling-fetlife-com-with-ruby http://zenbach.com/scaling-

This reminds me of a video I saw about scaling with ruby on a niche social network (http://zenbach.com/scaling-fetlife-com-with-ruby http://zenbach.com/scaling-fetlife-com-with-ruby). It was an interesting talk, but they also tried MongoDb and moved away from it, though, they were also using an older version.