In business and technology, it is common to see the underdogs suddenly rise up and knock the incumbent out of the top spot which, in turn, shakes up the industry and changes consumer perceptions and the business landscape.
If social media was horse race then you might as well put down the glasses as the race has been won. The dominance of Facebook is well known but it is the scale of its growth, market share and time it takes from its users is what is intriguing.
If you really want to be successful, you are going to have to put some time into your marketing and blogging to make significant profits. Believe in yourself, and the methods you're using, or you might fail.