As the world becomes flatter and as technologies spin the web, Reputation is now one of tenants of economies. Without it, nobody will listen. If markets are conversations, then reputation is the glue that will attracts these conversations.
Having played in the reputation sandbox within the omidyar network, I can certainly say its hard to build matrix's blocks for this vital aspect of today's commerce. Tara has her own thoughts within this paradigm and community fostering. In a recent reading of the book "your Management sucks", it begins with declaring constructive war on oneself. One must challenge the how and why of what is being done. I think that Pinko does that very effectively.
For What its worth, me is just catching idea's within the "butterfly net" - the term I use as the next level thought process that orginates as the web spirals its way into the future.