Newsarama has an interview with EQAL CEO Miles Beckett, which was conducted at ComicCon. The rather lengthy interview covers everything from the early days of lonelygirl15 through Level 26.
So, there is the LG15 universe... where there is this mythology, like I said, of this blood trait – trait positive – they are positive for this trait, unnamed, that lets them live longer, and if you take the blood out of their body and put it into your body, you can live like an extra fifty years. So around the turn of the century, Aleister Crowley, the famous occultist, made this discovery. He discovered ancient Egyptian documents that some Pharaoh had discovered before him. He figured out a way to test for this blood trait and so he set up this secret society called the Order to scour the planet for these girls because they realized that if they could keep finding these rare girls, drain their blood, and put it into themselves every fifty years, they could live forever. And they created a fictional religion called the Hymn of One which is like a front for the Order. They don’t really know what they are doing but they are kind of operating on behalf of the Order.
The article can be read in its entirety here.