You never really know what you're onto until you look, but who knew "looking" involved "digging through source code?" Software guru Jeff Rose had his curiosity piqued yesterday with the proper launch of Facebook Video Calling, and rather than just being satisfied with things working, he took it upon himself to see how exactly things were coming together under the hood. Turns out, the program grabs a startlingly small download link called FacebookVideoCalling.jar, which in turn uses LiveConnect to allow the Java applet to fetch a few other things. This enables the program to source your Facebook user ID (
