kiwi chick: it's pretty much on the news here all the time and so far nothing relevant has been found. The latest is that the civil air patrol now have four "credible" leads which they are following up, but they haven't given any details of what those leads are.
niknak: I don't understand your comment about keeping a satellite above a spot. You do realise that would be difficult to do unless the satellite is already in geosynchronous orbit, don't you? In that case it's unlikely to be able to do much to help with the search.