Do you stumble? Wikipedia defines StumbleUpon as: "StumbleUpon is an Internet community that allows its users to discover and rate Web pages, photos, and videos. It is a personalized recommendation engine which uses peer and social-networking principles."
So, here's how it works. StumbleUpon has two sides to it. If you have an account, SU will install a toolbar on your browser with a "Stumble" button. Clicking the stumble button will load a page in your browser that is a complement to what you've told SU your interests are. So, if you indicated in your profile that your interests are writing and music, SU may feed you a page about writing lyrics. Get it?
So how does SU figure out what pages to feed you? Well, that's the other side of SU. When you find a site you like you stumble it, reporting it to SU as something you like. SU figures that if you like this site -- and have tagged it accordingly -- then it must be something relevant to writing and music. Now when someone else comes to SU and has the same interests as you, SU will feed them the page you stumbled. Cool, right? It's highly addictive, so be careful.
Now here's your challenge. How could you use SU to promote your association's blog? Or maybe your upcoming conference? A little trial and error and you might be surprised at what SU can do for your site traffic.
Come back and comment after you've taken SU for a spin.