First, you need to write about things that are searched by people, not something so plain like 'how to build a chair' but more on something that is used in peoples' everyday lives. Think about it, what do they use every day? Their phones, computers, trains, cars, work places, schools, colleges, ect.. these are always good topics as there are ALWAYS new people arriving to the subject. It's good to write unique hubs, but you should draw the public to your page with more-so 'epic' ones. Then, you need to have good tags--tags, tags, tags! I know I had a lower amount of tags on one of my hubs, I added about five or six more clever ones, and almost instantly I saw a pretty little red triangle next to my hub! Try using Twitter, and also backlink!! You can do this at redgage.com and readit.com here you submit links for people to see, and boy does it work wonders! Good luck to you as it looks like you've got everything else covered!!