Green_Grass - 7:35 am on Sep 7, 2010 (gmt 0)
Arbitrage is alive and well. You just need a big site with lots of money to spend. The big site gives an illusion of respectability and the money smoothes over any QS problems.
I see this phenomenon over many ( so called unique) information sites. They are plastered with adsense ads with little data sandwiched in between.