StumbleUpon Intros No Browser-Installation Feature

Despite having not too much noise during the time that it has been operating, StumbleUpon managed to survive the test of times and was able to gain followers and users. In fact, the StumbleUpon site its number of stumblers to around 6,089,710 already. Despite this numbers though, StumbleUpon still has not managed to emerge as a major player in the “site discovery” niche. One thing that in a way hinders SU’s gain of popularity is the fact that some would just not want to install the StumbleUpon browser toolbar.