Just a heads up to people that the current Bundle of Holding is a bunch of games and supplements that use the Ubiquity Engine (Hollow Earth Expedition, Leagues of Adventure and All For One). I own a bunch of these in dead tree format and I'm picking this up.
These are jolly good books and I'm getting electronic copies to go along with the dead tree versions that I have at the moment. I also heartily recommend the Charlie Stross novels. They are a great series.