For example, technology exists to track which questions take longer for students to answer so that electronic courses could dynamically adjust, adding more information on these topics.

FORBES: Class Size Doesn't Matter

"It's too early for us to do anything, " he said, adding that more solid information is needed on the situation.

CNN: Algeria launches push against militants to free hostages

An attempted assassination of the President of the United States in Spain is seen from the point of view of six participants in the events, one version after another, with each adding a little more information.

NEWYORKER: Vantage Point