Use Uber on New Year's Eve at your own risk -- to your wallet. At least the mobile-app car service is warning customers in advance about skyrocketing rates.
Across-the-board airfare increases happen less than an handful of times each year and are usually decided by Southwest, which carries the most passengers within the U.S.
Yapta's push into the corporate market is a no-brainer as it can provide a valuable service for large corporations which don't have such tools of their own.