A memorial sits at the site of Michael Brown's death in Ferguson, Mo. Any investigation into his shooting by a police officer is likely to take months. Larry W. Smith/EPA/Landov hide caption

itoggle caption Larry W. Smith/EPA/Landov

Teachers with the Jennings School District pick up trash Tuesday on West Florissant Avenue in Ferguson, Mo., the scene of nightly police clashes. Jennings and the neighboring Ferguson school district have canceled class due to ongoing unrest. Elise Hu/NPR hide caption

itoggle caption Elise Hu/NPR

Complaints about Janet Jackson's Super Bowl halftime show performance of 2004 led to a record number of public interactions with the Federal Communications Commission. This year's net neutrality comments come in second. Donald Miralle/Getty Images hide caption

itoggle caption Donald Miralle/Getty Images

The call center of Zappos.com gets high marks from consumers for strong customer service. Shashi Bellamkonda/Flickr hide caption

itoggle caption Shashi Bellamkonda/Flickr