Popular Science and Google have partnered to scan and published 137 years of magazines full of inventions, interviews, and science news from around the globe. Oh, and don't forget those cool ads!. I'm not sure the search feature is 100% yet but I did find a few older articles that might be of interest to robotics enthusiast:

Sept 85 - Robot Sentries Patrol Prisons and Factories
Sept 62 - Teachable Robot Can Remember 200 Commands
June 83 - Computerized Personal Robots