These sites, some of which I am a member of- will enable you to make backlinks to your hub pages. Stumbling is a great way to let other people know what sites you like and read and recommend. People who read them will see a link to your hub pages or even blog or website if you have them too. Free links that will bring readers to your hubs, and the more people who read you, the higher your rating here. Digg and Delicious work very similar. Don't know anything about Mister Wong. Reddit is good too!
You can help the HubPages community highlight top quality content by ranking this answer up or down.