If your hub answers a question then try other answer and question sites like yahoo, quora, etc. Put a link to your hub as the resource. ( make sure the site is a do follow) but even in no follow situations if the question ranks high you'll generate a bit of traffic.
If you have a relevant established blog then backlink to your hub. Tumblr is a do-follow site. Backlink to your hub from tumblr.
create a podcast and backlink to your hub
guest blog with other bloggers