Newsweek  found out "secret" info that  will  be amazing to anyone that's never been at college, in a club,  in a newsgroup, relationship , family  etc that there's always  a small group of people that have a disproportionate  effect on  the surrounding organization.  Mashable has a retort based on  Newsweek's incorrect comparison over here.

Is User-Generated Content Out? | Newsweek Technology | Newsweek.com Last summer researchers in Palo Alto, Calif., uncovered secret elitism at Wikipedia when they found that 1 percent of the reference site's users make more than 50 percent of its edits.

And in the prior versions of encyclopedias  , you know those good authoritative ones? Seemingly 100% of their  edits were made by the owners yet this idea is more comforting to many. Having seen a mangling or framing of many  non-mainstream ideas that's less than unbiased  it may be  better to create a   caveat emptor ,    a cogitor emptor approach to any info found lying around serves you better if you examine  where it came from rather than taking it at face value.

I've found that a mixture of both works best for me.  E.g. have the crowd aggregate  the sources from the  "experts" My favorite search engine for locating  factual info turns out to be Delicious.