![Technology Top Stories from Associated Press (AP) show](/assets/missing_small.png)
Summary: CHICAGO (AP) , Far-flung family members, co-workers and friends frantically used social media, cellphones and even a "people finder" website Monday to try to learn the fate of participants and spectators at the Boston Marathon, where three people were killed and dozens injured after a pair of bombs exploded near the finish line of one of the world's great races.