Pensioners queue outside a national bank branch in Athens on Thursday. Greek banks are running out of cash and the situation poses further danger to the economy, analysts say. Aris Messinis/AFP/Getty Images hide caption

itoggle caption Aris Messinis/AFP/Getty Images

The popular Reddit question-and-answer section /r/IAmA, along with hundreds of others, have shut down in an apparent protest over the dismissal of a key figure at the social sharing site. Screengrab from Reddit.com hide caption

itoggle caption Screengrab from Reddit.com

Google's upcoming "now on tap" feature will let smartphone users ask a question within an app like Spotify. Google Inside Search hide caption

itoggle caption Google Inside Search