Easy-to-use, especially with keyboard shortcuts. This extension is great for anyone who likes to surf the internet on occasion, just letting the digital waves take them wherever they may. I have found many, many different websites that I love through this extension.

Addictive

It is very useful to discover new interesting websites and to find people with similar interests; i discovered rateitall.com and many other great webpages using stumbleupon.

I can't use any browser that doesn't support StumbleUpon. It's a great cure for boredom. Better than channel surfing anyway.

StumbleUpon is yet another neat social web service that uses the surfing patterns of other people to recommend you stuff that you might like. It's a very neat tool for finding new web sites.

I'm not that big on surfing the web, but the random things found by StumbleUpon can be really entertaining. I mean, where else would I have found the Ryan's Steakhouse story? http://shtick.org/Misc/ryans.htm