I have tried Stumble several times after reading an article at DoshDosh //www.doshdosh.com/blog-website-promotion/a-comprehensive-guide-to-stumbleupon-how-to-build-massive-traffic-to-your-website-and-monetize-it But it seems to work when you really have quite a few pages to submit. When submitting try to be more general - look at what categories are more popular, and yet are on your topic.
Stumble is great. Brings some decent traffic, but yeah depends on your niche. WE have set up gangclick.com so people can get their sites stumbled and reviewed by other webmasters. Check it out!
i had never heard of it before today, but i signed my sites up and will let you know if it gets anywhere
I get about 30 visits a day for every page I submit, the key is to get people to give you a thumbs up.
I actually just recently wrote up a piece on the future of StumbleUpon marketing on my FadMarketing blog. It will explain some of the basics, some of the problems, and why it is or isn't likely to work as a marketing tactic in the long-run: StumbleUpon: Fad or Fab?