Things that make you go “Hmm”: New York-based is offering an alternative to the use-a-Realtor model of home buying and selling. It offers not only to handle the logistics of listing a property, but it also gives sellers the advice of real real estate agents, for a flat fee of $395 a month or up to two percent commission. (It offers various levels of service.)

Now it’s expanding onto the buyers’ side, using its own interface — it’s only in a few areas of New York City right now, so that’s not very difficult — and offering a one percent closing rebate.

Obviously we’re not saying this is a good thing, just that it’s an interesting thing. And something worth keeping half an eye on.