Bitcoin Forum

Here's a pretty decent article from Fast Company titled "The Sharing Economy":
  - http://www.fastcompany.com/magazine/155/the-sharing-economy.html

From the article:
 "Amazon came first, then eBay, and peer-to-peer is next. It's almost as far as you can get on the spectrum of goods exchanged,"

That evolution (from a centralized model to a centralized+P2P hybrid model to finally a pure P2P model) is also described here in a post by Tim Hyer of RentCycle:
  http://blog.rentcycle.com/building-the-bridge-to-p2p

Specifically Tim describes that until eBay really took off, we as a society were too fearful of doing business P2P-style with strangers.  Once that fear eased, Craigslist was able to dominate its market.

"It’s all about baby steps and doing what’s right at the appropriate time."

centralized sites have few advantages over p2p - you don't need research that much when going abroad or moving between cities - ebay stays ebay all over the world same with herz, while smaller sites and organizations are often country or region specific - that leads to another thing - you can get anything off ebay while smaller sites have only fraction of things or services you looking for, next, you have some protection when using middleman - paypal, escrow etc. while direct dealing with people (even if you can meet them in person) may have bad outcome in some cases... all depends on what when and where...

i really don't think there is any chance for revolutions, especially not that kind that anyone can foreseen... but i agree that slow evolution will take place, especially with every fees increase on all big sites

Another article, similar message:
  The Emerging, Collaborative Economy
  http://www.smartmobs.com/2011/04/24/the-emerging-collaborative-economy