I'm creating an iPhone app and I want the app to be able to send some information in the form of JSON string over a web server/app (I really don't know) and display it in a web page or save it to a file. I know how to send the request from the iPhone, the problem is I don't have a clue on how to implement the server side and integrate it with a web page that can respond to the HTTP post I'm trying to send to it. I don't need any specific details so if you could only point me to the right direction e.g. reading material, websites, key technologies for this.
Thank you for your help