Here’s a blast from the past: Digg, one of the web’s early news aggregators, is now back under the ownership of its original founder Kevin Rose. Notably, he’s being joined as co-owner by Reddit co-founder Alexis Ohanian (both pictured above). Digg and Reddit were once fierce rivals in the online social news aggregation space, launching within a year of each other some two decades ago. The two platforms enjoyed similar growth trajectories in the intervening years, going through various owners and...