You can go to other peoples hubs and post comments, join someone else's fan club, and post on the forum. Then other hubbers are more likely to notice you and check out your hubs. Also when I joined the hub challenge and started posting my progress on that forum, that helped even more. One other way is to let people outside of hubpages, for example people you sent emails to, know your website address. You can post a link to one of your hubs on Facebook.