Ever since Al Gore invented the internet, gun-slinging entrepreneurs, dusty media giants and wagon trains of marketers have been panning the web for nuggets of consumer data. It’s still the Wild West out there but the California gold rush is over and the Texas oil boom is on. Waiting just below the trickling stream of keywords, likes, and basic demographics is a pressurized cavern of consumer data that Facebook’s Open Graph is threatening to blow sky-high…