Doug Salot is a scavenger.  He goes places where most fear to tread.  He's hunting for old computer relics.  When he finds one particularly interesting and photogenic, he sticks a picture of it on his Blinkenlights Archaeological Institute website.  Besides lights that blink, relays that clack, and cool stuff like that, he also finds old personal computers interesting because they ushered in the biggest revolution in the history of mankind.