Groupon 's Shares Sink
Groupon's stock recently traded at $5.82, down 23% and below the lowest closing price since Groupon went public in November at $20 a share.
Social Media
New Insect Species Discovered -- on Flickr
Insect expert in California discovers new species through Malaysian photographer's posts.
None of Your Facebook Friends Are Real
The social media company says there are more fake accounts in its system than it previous acknowledged.
Russian Anti-Corruption Blogger Charged
Alexei Navalny, who has been charged with theft, faces a long prison sentence and is banned from leaving Russia.
