With “The Social Network” unable to forge a marketing partnership with the website at the center of its story — Facebook — Sony is promoting the pic on MySpace. It’s been no secret that Facebook founder Mark Zuckerberg isn’t a fan of the upcoming film as it casts him in a neurotic light.

But the big question is, who on MySpace’s site will truly care for “Social Network”? The film is truly meant for any Facebook user. Quantcast, which tracks web traffic, estimates Facebook’s unique monthly visitors at 133 million, and MySpace’s at a distant 45 million.

It’s truly ironic that “Social Network” would be tubthumped on MySpace since that site was the hip forerunner to Facebook in the middle part of the ‘00s. However, hacked accounts, porn spamming and an unfriendly user prerequisite knowledge of HTML forced the bulk of MySpace users to migrate to the safe haven of Facebook. MySpace is still a coveted destination for garage and rock bands to spread the word on their comings and goings. The Hollywood Reporter describes the “Social Network” ad on MySpace as one that takes over the whole home page: