If you’re a frequent Northwest Airlines flyer, you might be interested in Northwest’s Google Gadget. It’s an easy to download tool that will help you stay up-to-date with your WorldPerks mileage balance directly on your iGoogle homepage. You simply enter your WorldPerks number once and the gadget will remember you during future visits. You can search for airfares, check flight and gate status, manage your reservations and WorldPerks account and check-in for flights all from your iGoogle homepage. American Airlines also has a Google Gadget, but currently only flight information can be accessed.