Summary: Stories: 1) DIY Houses In The Internet Age: Some Assembly Required 2) With An Air Bag, Help During An Avalanche Is A Cord-Yank Away 3) Robot Construction Workers Take Their Cues From Termites 4) Are Tech Execs Uncomfortable Around Young Black Men? 5) Tech Innovator And Master Of Maps Dies At 80 6) Mobile Match Apps Are 'Dating On Steroids'