StumbleUpon changes repeat Digg blunders of old

There’s some heavy changes going on out there in the world of content sharing, and StumbleUpon is feeling the sting of taking a gamble on keeping customers. What the content sharing site has done in its most recent update pushed sites to the background while it sticks its own menu bar in the foreground, this effectively taking away the element of freedom that StumbleUpon users had for so long been able to tout over similar sites. What StumbleUpon leaders had hoped to accomplish with this change is a click-retention ratio that would drive their own site into the record books – instead its cutting down their support from all sides.