What is it: As the title says, an Internet enabled electricity meter. Plug your power sucking device in and its built-in webserver uploads power usage to the Wattsupmeters.com website.
Features: Usage can be recorded at all sorts of intervals, but the faster you record the more the monthly fee. LED display, the ability to control power usage remotely, manually or by setting up rules. USB and Ethernet ports. Up to 25 meters (maybe more) can be attached to one account.
Price: $230 + $0-50/month fee