I don't know, if it wasn't for Linkedin I wouldn't be in my current job of almost ten years.
On a totally unrelated note if you're looking for someone who can blacksmith up something that approximates a web frontend to a DB or some audio DSP code or some embedded code for various microcontrollers, or actually blacksmith stuff up with hammers and a welder, I'm putting out feelers for a new gig. Network engineer, jobbing mathematician, and database mangler, open to offers.