It also seems very similar to the (crowded) pastebin space, which according to http://en.wikipedia.org/wiki/Pastebin http://en.wikipedia.org/wiki/Pastebin have

It also seems very similar to the (crowded) pastebin space, which according to http://en.wikipedia.org/wiki/Pastebin http://en.wikipedia.org/wiki/Pastebin have been around since at least 2002. To be honest, I think it would be hard to get a profitable business out of your idea (the cost to acquire customers would probably exceed the lifetime present value). However, I suspect that profit isn't necessarily your intention here.