You should have a heart attack every time you drop an electronic device
Anything without moving parts will usually tolerate a fall, especially with the newer 'gorilla glass' surfaces. Anything with a spinning disk is in peril - hope that the drive heads were retracted or that the force vector wasn't slamming the heads down on the disk. Every year the technology does get a little more impact tolerant though, nonetheless I get a squicky feel when a $500 phone goes clatter-thunk. If your netbook hasn't been backed up, soon would be a good time, just in case.