Internet marketers had been going all out to market on popular social media sites especially on Facebook, twitter, Instagram and LinkedIn. There are actually many other social media sites that had not been utilised but has the potential to drove traffic, backlinks and social signals.
Tumblr, a microblogging platform owned by Yahoo is a neglected sites. As on February 7, 2014, Tumblr hosts over 170.2 million blogs. Now you view this video that might give you some idea that Tumblr can be your next money making machine.