I don't know about the google airplane view...that sounds pretty cool. I can see my car in my driveway with the street view in google maps.
google.com/books is interesting. I haven't poked around there too much but they have a ton of books you can just read at any time. All sorts of classics and stuff. I've also heard that google wave is cool...it's like a chat room type thing, i think. Haven't used that yet either, but hear it's cool. Of course, if you're not on gmail, you need to get it. It's the greatest email ever...
I love google.