I seen this thread earlier today, and no replies at days end... Not ignoring you. I used SEDO once and got such little clicks that it wasn't worth mentioning. Now, if you had some domains with some links and traffic, it might be a different story. I used them about 2 years ago. They appeared to be on the up and up. They must be doing ok, If I remember right, you could park and offer for sale domain names. It was quite big 2 years ago, might still be now.