So ZipRealty is showing the average co-op commission offered in a given zip code and I say BFD. Shouldn't the buyer know if his agent has a vested interest in one property over another? Shouldn't the buyer know the actual co-op being offered to his agent for every property?

I agree, Evan, the buyer should know if his agent has a vested interest in one property over another. She should also know the actual co-op being offered to her agent for every property. But I'm not sure how these principles relate to ZipRealty's new service.
My initial take is that by knowing the average co-op being offered in his area, a seller can get a sense of whether or not the co-op being offered by his listing agent is way off the mark.
On an unrelated topic, thanks for posting your blog and twitter handle on my blog recently. I'll be updating my blogroll shortly.
-Michael
Posted by: Michael Erdman | September 02, 2009 at 04:18 PM
Your right Michael, the more transparency the better. However, I feel the co-op that is offered should entirely be the decision of the seller, it's her money.
Keep up the good work, love your website and blog!
Posted by: Evan Kane | September 02, 2009 at 04:27 PM
Sellers would be smart to factor in advice from professionals such as yourself and relevant data, but at the end of the day, I tend to agree that it should be the seller's call.
Can't say that I've ever heard that position advocated by a Realtor. Count me as a new subscriber to your blog!
Best,
Michael
Posted by: Michael Erdman | September 02, 2009 at 04:55 PM