Reputation networks are much more important in commerse in Eclipse Phase than they are in real life, but we already use reputation networks all the time in our everyday lives. How about we get a list of real life examples of rep networking going? I'll start with two quick ones:
Xeni Jardin from BoingBoing recently was on Rachel Maddow to discuss net neutrality. A few hours before the show she asked for quick summaries of why it was important on Twitter and received a stream of sound bytes from her huge list of followers on Twitter.
Consumer X and consumer Y both wish to purchase new cars. Consumer X has always paid his bills on time, and kept low credit card balances, and consequently has a very good credit rating. He is able to very easily obtain favorable loan terms to finance his new car. Consumer Y on the other hand has a very bad habit of forgetting to pay his bills on time, and has never been particularly good at handling credit card debt. Consumer Y has to make a very large down payment on his new car and is only able to get a very high interest loan.