In 2011, you may not “see” Linux, but it’s everywhere. Do you use Google, Facebook or Twitter? If so, you’re using Linux. That Android phone in your pocket? Linux. DVRs? Your network attached storage (NAS) device? Your stock-exchange? Linux, Linux, Linux.
And, to think it all started with an e-mail from a smart graduate student, Linus Torvalds, to the comp.os.minix Usenet newsgroup: