Digg rather famously did have both followers and "influencers", though not in quite the same sense that those creatures are known today. Arguably its failure to limit the impact of both are what led to the forms we see today.

There's been an awful lot written about all of this over the years, much of it overly simplistic and some of it just straight-up wrong; we all want to believe that we're just plain smarter than the ancients, even when those ancients were us.

If you're interested in (ahem) digging into this, start by searching for things like "Digg voting network".