Adding yet another tentacle, Google is moving into the smart grid market. A new iGoogle gadget when coupled with a smart power meter, will tell you which appliances in your home are hogging electricity, and when, helping you save power and money. (A "gadget", in Google-speak, is an embedded piece of software that offers a real-time feed; in this instance from your power meter to iGoogle, the search giant's personalised home page service.)