Google already has a social networking service that theoretically competes with the likes of Facebook. It’s called Orkut, and only Brazilians care about it. Orkut is no threat to Google. But Google launched an initiative a few hours ago that just might end up

killing Facebook off as the number-one social network.

The initiative is called “Social Gadgets,” which can be installed on Google’s iGoogle launch page site. Here’s why Facebook should be very, very nervous.

Original post by Mike