The best way to improve your hubpages, is get more traffic to them, make sure your content is good enough for people to become 'fans', and being the first to answer 'requests'.

Content is king on this network, and I for one take the position of being the one divulging the knowledge (like now LOL).

But, if you're looking for traffic...

Make sure you post to your social network blogs and groups that you posted a new hub. I do this all the time on myspace, facebook, blackplanet.com, Ning, Bebo and other networks I belong to. I also post my new hubs to my current blogs on my server.

Also visit Yahoo Answers, and answer people's questions by posting the answers to new hubs on here, and then telling the people in Yahoo Answers that the answer is at your new hub.

You'll get love on both hubpages and yahoo for that.

Goto digg.com and 'digg' your new hubs. If they're good enough, they'll generate a buzz on there, and bring your hub more traffic.