We all know very well, to get in stumbleUdon there is a new requirement to have at least 5 mutual friends on StumbleUpon.
Nova's stumblebot does a great job, but if you can't afford it, there is a natural way to get mutual friends and keep the number of friends growing day by day.
Join BHW's StumbleUpon friends group through the link from my signature by posting your SU member ID as yournickname.stumbleupon.com.
Then add to your StumbleUpon friends all other StumbleUpon friends group member IDs, and check for your fans to add them as friends to make the friendship mutual.
Keep checking regularly on your StumbleUpon friends page for your new fans and keep adding them as friends, day by day.
In this way we will create a strong group with high weight on StumbleUpon, hopefully increasing the effectiveness of our SU discoveries, comments and reviews.
Thus don't wait, go to http://www.blackhatworld.com/blackhat-seo/group.php?groupid=2 and follow the instruction. No long explanation, no storytelling, just place your stumbleuponname.stumbleupon.com and check daily your SU account for your fans, add them as friends, and you will have more and more mutula friends. That easy. Start right now.