Originally Posted by
elitefreak
I thought that Yapta.com had this service. But I checked there today and didn't see an option to get notified about FF seats opening up.
I believe they advertised it at one point but they're dependent on access to the inventory just like we are. Given that the airlines are generally loathe to publish it in general it doesn't seem likely that they'd go out of their way to make the data accessible to a company focused on making it easier for customers to reduce the value to the airlines of the FF programs.