I use the traditional methods of social bookmarking and pestering my friends to view my content. The best way to acquire traffic is to have killer content and focus on increasing your capacity to present that content with awesomeness and flair. I'm currently new to Hubpages so I plan to see just what I can do here compared to my other ventures in the past.
You might consider Stumble Upon Paid Discovery if you are willing to spend a little money. I have not used it for Hubpages yet, but it has worked well for me on other occasions since I don't care about conversions. I want the visitors and the hoped for stumbles that will make my content viral. Then I worry about conversion. :)