
One great thing that flickr does is analytics on referring websites. This makes StumbleUpon a unique marketing tool that is measurable and trackable. You can clearly see just how effective StumbleUpon can be below. Similar to YouTube in it concept of channels, a user can tailor their stumbles to their own likes. Similarly your online content that you refer to StumbleUpon will be viewed only be users who have made a conscious decision to see content similar to yours.

The process I am developing is to incorporate this involves creating interesting, compelling assets then throw them out to social networks via facebook, twitter and StumbleUpon and ba-da-bing you have a pseudo-viral marketing campaign.