Is this the future of journalism?

We usually associate crowd-sourcing with web-based software, such as Amazon's reviews and Wikipedia.  These applications would become useless if not for the free contributions of the crowd.

Now the public sphere is getting involved:

• A US government site helps sniff out fraud in the current economic stimulus by urging online visitors to provide tips about suspicious spending and vote on whether projects appear to be worthwhile and properly sourced.  Stats and rankings of individual projects in all states can be browsed.

• Meanwhile, ProPublica labels itself a "reporting network".  They use reporters, but most of the work relies on local readers.  A recent undertaking found out which elected officials had free tickets to the Super Bowl (a common perq paid by lobbyists).  Over 500 officials were tracked down and questioned, which would have been a mammoth job even for The New York Times. 

My question: why don't big businesses do this internally?  A smaller crowd limits what you can do a bit, but with no anonymous members, the results would likely be more accurate.  Or, maybe you leave it anonymous to encourage more boldness; you still know that the commenters aren't total strangers.

The point remains that upper management has no idea which applications are justifiably hated by its users, which support teams have improved the most, which business teams act like a**holes, which company benefits are most valued, which processes stultify productivity.

As the overseer of the stimulus spending put it, "Only local folks can connect those kinds of dots."