The polarizing guy behind Facebook stopped by the Y Combinator's Startup School for a rare, candid interview. Read »
The social-media titan is launching an impressive and expansive initiative to help small businesses -- to the tune of giving away $10 million in free ads. Read »
One of Groupon's rivals, Facebook, has dropped out of the race, and traffic to all daily deal sites slowed this summer. Read »
Groupon competition heats up even more with solar deals, and one columnist compares the company to a Ponzi scheme. Read »
Groupon is challenged with more competition from the big guys, including Facebook and AT&T. Read »
Facebook's possible $100 billion IPO doesn't pose any problems for Groupon - unless it happens this year. Read »
The mother of all IPOs could give birth as early as next year. Read »
Forbes takes a look at Facebook's recent deal with China's Baidu and how it affects Mason. Read »