First of all, you need to write more than one hub. I didn't see good traffic until I had several of them and had been here a while. Link your hubs together if they go together. Once you have several hubs, start your own facebook page just for your hubs.
Share your hubs with your friends on Facebook. Include the url to your profile page underneath your name on all emails that aren't professional. Start a twitter account and share them. Join Redgage to share them.
Check the competition before writing a hub. If there are already millions and sometimes billions, forget it unless yours is really better than the top 3 listed at Google.