If you wanna make money online so you can develop an application on facebook. Once Application get popular so you can earn a lot from that application. I found many companies are developing social networking applications and they are earning a lot from it. Creating an application for social network is also a very good business
That true but there are very few case of successful such as zynga inc. In the mean time,social networking apps creator is more profitable compare to apps owner. Apps owner need to spend thousand of dollar to promote its apps.
Yeah i agreed with you but if you app is fun loving and you have a large friends circle in different network so your application can be promoted very easily by making groups and face pages or you can also send message containing link of that application to your friends. Let me give you an example like name analyzer this application gets popular in very less time.