I'm still getting the hang of this "backlinking"/S.E.O. business but here's what's been working for me:
I post links to my Hubs on Facebook and also at a number of discussion forums I belong to that pertain to the stuff I write about (mainly music and movies).
Posting links on the message boards at IMDb (Internet Movie Database) has worked out well for me too.
I guess if you don't backlink at all, you'll eventually get *some* outside "organic" traffic via Google and other search engines as they find your stuff, but that may take longer than you're willing to wait.
Of course, you might get lucky and someone might discover your Hub and pass it around via e-mail.