I tried this method before and it worked quite well. Overall I got around 300K legit views, no paid to surf whatsoever. All I did was to use StumbleUpon. Most of you may say that’s normal, to get a couple hundred thousand views from Social bookmarking site. I don’t think so, simply because I don’t take StumbleUpon as a social bookmarking site. SU is totally different from Digg and the users are also more subject based. Unlike Digg, user sees whatever that is on their frontpage. It’s almost like a visit to the toilet for digg, come in and go.
I tested this on my site letscafe.com. Basically I treat every post as potential viewer subscribing to my content. The content you show on your site reflects what your site is all about. From my experience, funny stuff does really really well on StumbleUpon. All you need to do is post some funny stuff once a week and wait for the magic to begin.