StumbleUpon. In our recent Social Bookmarking Faceoff, we noted that StumbleUpon has the largest user base with 1,271,345 users. Its main rival in the space, del.icio.us, recently announced it had reached 1 million users.We hear a lot about digg, Slashdot and del.icio.us as traffic drivers for media websites and blogs. But one site that doesn't get enough props in this regard is
StumbleUpon is basically a browser plugin which makes it very easy to submit and vote on websites. Simply download the plugin (Firefox or IE) and then click the "I like it!" icon to 'stumble' a webpage. Once a link has been submitted, it can propagate out to the large community of SU users in a very viral way.
Neil Patel, who has given me a lot of excellent advice about website optimization, recently wrote a post entitled How to get StumbledUpon. It's a great introduction to StumbleUpon and a must-read. In fact, subscribe to Neil's blog if this kind of thing interests you.
I can attest to the power of StumbleUpon - our most popular post over the past couple of months (according to my Google Analytics service) has been Top 10 Firefox Web 2.0 Add-ons. Usually our top posts are ones that have had the fortune to be Slashdotted or dugg. But this one got neither. Instead, 27% of its traffic was driven by StumbleUpon and 14% by del.icio.us. And the flow from StumbleUpon continues. I have to admit though that it's one of only a few R/WW posts to have been stumbled in a big way, so like digg and Slashdot it's not something publishers can expect on a regular basis.
StumbleUpon is yet another example of a Web-based community that has gained a significant user base in a seemingly short period of time. Check it out!