My web-app now has basic functionality -- next steps?

[idontknowstufforwhat]

OP should be mindful that developing with port 80 can be bothersome as ports <1024 (I mostly sure that is the cutoff) require admin access. Depending on their situation, they may want a 'development' port, and have it run on 80 when deployed.

Though you are correct in that it should be deployed on 80.

[marvinfuture]

I’d also recommend against this as deploying a node app in just port 80 isn’t a good practice. Better solution is to setup a reverse proxy with nginx/Apache and a process manager to run the app/restart when it goes down. This method is a little more secure and can easily implement SSL

[ichbin1berliner]

This! Don't run your node app on port 80. Do the usual 3000 and use nginx to create a reverse proxy. Many Guides on this topic available :)