I totally agree with you namestrands. Sedo, in my opinion, could be the first, but everytime i'm disappointed by this bug, that problem... I feel so uncertain about everything, so unstable when i look at the features!
And when you say we need innovation, not imitation, you're su right. We know that what has been developed in PPC until now works and pays, but we still don't know what is better than this. No one want to risk, and i can understand that. But by developing different focus groups inside Sedo's customer base, with each group testing a variant of something, spontaneously, would pay back. Minimum revenue should be guaranteeed during tests, this may sound expensive: but how much does research cost, and how much does research count? Research made Google, which was in some way a "new comer" in the internet era, the first internet company today, and all the others "ex-big", are now empty boxes. At least for me.