You already selected a best answer, but I figured I better let you know the negatives. If you expect to publish a series of hubs that should belong together, you may discover that this is not necessarily the case on HubPages.
First of all, HubPages is meant for publishing individual magazine style articles that are each a stand alone entity.
Secondly, each of your hubs may be moved to different vertical niche sites, depending on the topic. So they will end up not being together in the same domain.
I see your have several that were moved to Letterpile. But others are still on HubPages. So already you have them broken up. See my point?