Groupon shares slid following a revision of its fourth quarter results, giving validation to earlier worries about the company. "Pink slime" is being named responsible for some bankruptcy claims and corporate layoffs. Sony's new CEO Kazuo Hirai has promised to revamp the company by combining "hardware with content," but will it work? The brand Cuties is using marketing to become synonymous with Mandarin oranges. And with Tax Day is two weeks from tomorrow, we hear about some Tax Day rituals.