Getting Started with Node.js on Heroku

NodeJS应用托管平台

https://devcenter.heroku.com/articles/getting-started-with-nodejs#dyno-sleeping-and-scaling

http://www.clovery.org/use-heroku-deploy-nodejs-application.html

http://www.gmarwaha.com/blog/2011/05/18/heroku-trouble-with-windows-and-ssh-keys/   创建ssh-key

在heroku中使用WebSocket   https://devcenter.heroku.com/articles/node-websockets